# Numeric Types

CLValue factories for all integer types.

## Import

```ts
import { CLValue } from 'casper-js-sdk';
```

## Unsigned Integers

### CLValue.newCLUInt512

```ts
CLValue.newCLUInt512(val: BigNumberish): CLValue
```

Used for **CSPR amounts**. Supports values up to 2^512 - 1.

```ts
CLValue.newCLUInt512('25000000000')  // 25 CSPR
CLValue.newCLUInt512(1_000_000_000)
CLValue.newCLUInt512(BigNumber.from('25000000000'))
```

---

### CLValue.newCLUInt256

```ts
CLValue.newCLUInt256(val: BigNumberish): CLValue
```

Used for **token amounts** in CEP-18 contracts.

```ts
CLValue.newCLUInt256('1000000000000000000')  // typical token amount
```

---

### CLValue.newCLUInt128

```ts
CLValue.newCLUInt128(val: BigNumberish): CLValue
```

---

### CLValue.newCLUint64

```ts
CLValue.newCLUint64(val: BigNumberish): CLValue
```

---

### CLValue.newCLUInt32

```ts
CLValue.newCLUInt32(val: BigNumberish): CLValue
```

---

### CLValue.newCLUint8

```ts
CLValue.newCLUint8(val: BigNumberish): CLValue
```

Used for small numeric values and flags.

---

## Signed Integers

### CLValue.newCLInt64

```ts
CLValue.newCLInt64(val: BigNumberish): CLValue
```

---

### CLValue.newCLInt32

```ts
CLValue.newCLInt32(val: BigNumberish): CLValue
```

---

## BigNumberish

All numeric factories accept:

```ts
type BigNumberish = number | string | BigNumber;

// All equivalent:
CLValue.newCLUInt512(25_000_000_000)
CLValue.newCLUInt512('25000000000')
CLValue.newCLUInt512(BigNumber.from('25000000000'))
```

## Notes

- For CSPR amounts, always use `U512`.
- For CEP-18 token amounts, use `U256` (check your contract's type).
- JavaScript `number` is safe for values up to 2^53 - 1. Use `string` or `BigNumber` for larger values.