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68074158744 = 2332945474427
BaseRepresentation
bin111111011001100010…
…010011101010011000
320111201012112120022200
4333121202103222120
52103403441034434
651134533250200
74626640542054
oct773142235230
9214635476280
1068074158744
11269630a7029
1211239a93960
13655b466a07
14341ad42c64
151b864eb199
hexfd9893a98

68074158744 has 24 divisors (see below), whose sum is σ = 184367513460. Its totient is φ = 22691386224.

The previous prime is 68074158739. The next prime is 68074158781. The reversal of 68074158744 is 44785147086.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 472737142 + ... + 472737285.

Almost surely, 268074158744 is an apocalyptic number.

It is an amenable number.

68074158744 is an abundant number, since it is smaller than the sum of its proper divisors (116293354716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68074158744 is a wasteful number, since it uses less digits than its factorization.

68074158744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945474439 (or 945474432 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 68074158744 in words is "sixty-eight billion, seventy-four million, one hundred fifty-eight thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 945474427 1890948854 2836423281 3781897708 5672846562 7563795416 8509269843 11345693124 17018539686 22691386248 34037079372 68074158744