import BN from "bn.js";
/**
 * Safely convert BN to number, throws if exceeds MAX_SAFE_INTEGER
 */
export declare function safeToNumber(bn: BN, context?: string): number;
/**
 * Convert lamports to SOL (safe conversion)
 */
export declare function lamportsToSol(lamports: BN): number;
/**
 * Convert cents to dollars
 */
export declare function centsToDollars(cents: BN): number;
/**
 * Convert timestamp BN to Date
 */
export declare function timestampToDate(timestamp: BN): Date;
/**
 * Check if timestamp has passed
 */
export declare function isTimestampPassed(timestamp: BN): boolean;
/**
 * Convert WAD to float for display
 */
export declare function wadToFloat(wad: BN): number;
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