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76749316488 = 23321381997133
BaseRepresentation
bin100011101111010011…
…1011010000110001000
321100002210101020112100
41013132213122012020
52224140311111423
655131432113400
75354630266125
oct1073647320610
9240083336470
1076749316488
112a604a96489
1212a5b235860
13731182ba50
143a0115974c
151ee2e0d343
hex11de9da188

76749316488 has 48 divisors (see below), whose sum is σ = 223852175820. Its totient is φ = 23615174016.

The previous prime is 76749316463. The next prime is 76749316517. The reversal of 76749316488 is 88461394767.

76749316488 is a `hidden beast` number, since 7 + 6 + 7 + 493 + 1 + 64 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 75868295364 + 881021124 = 275442^2 + 29682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40997631 + ... + 40999502.

Almost surely, 276749316488 is an apocalyptic number.

76749316488 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

76749316488 is an abundant number, since it is smaller than the sum of its proper divisors (147102859332).

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

76749316488 is a wasteful number, since it uses less digits than its factorization.

76749316488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81997158 (or 81997151 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 76749316488 in words is "seventy-six billion, seven hundred forty-nine million, three hundred sixteen thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 81997133 163994266 245991399 327988532 491982798 655977064 737974197 983965596 1065962729 1475948394 1967931192 2131925458 2951896788 3197888187 4263850916 5903793576 6395776374 8527701832 9593664561 12791552748 19187329122 25583105496 38374658244 76749316488