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76131515530 = 25719597912281
BaseRepresentation
bin100011011100111001…
…0101011110010001010
321021111201212200221101
41012321302223302022
52221404131444110
654550242332014
75333416130140
oct1067162536212
9237451780841
1076131515530
112a31828a484
121290835a00a
13724383c955
14398309b590
151ea8a7613a
hex11b9cabc8a

76131515530 has 128 divisors (see below), whose sum is σ = 169786368000. Its totient is φ = 23999639040.

The previous prime is 76131515521. The next prime is 76131515563. The reversal of 76131515530 is 3551513167.

It is a self number, because there is not a number n which added to its sum of digits gives 76131515530.

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 63 ways as a sum of consecutive naturals, for example, 6192990 + ... + 6205270.

It is an arithmetic number, because the mean of its divisors is an integer number (1326456000).

Almost surely, 276131515530 is an apocalyptic number.

76131515530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

76131515530 is an abundant number, since it is smaller than the sum of its proper divisors (93654852470).

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

76131515530 is a wasteful number, since it uses less digits than its factorization.

76131515530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 76131515530 in words is "seventy-six billion, one hundred thirty-one million, five hundred fifteen thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 59 70 79 95 118 133 158 190 266 295 395 413 553 590 665 790 826 1106 1121 1330 1501 2065 2242 2765 3002 4130 4661 5530 5605 7505 7847 9322 10507 11210 12281 15010 15694 21014 23305 24562 32627 39235 46610 52535 61405 65254 78470 85967 88559 105070 122810 163135 171934 177118 233339 326270 429835 442795 466678 619913 724579 859670 885590 970199 1166695 1239826 1449158 1633373 1940398 2333390 3099565 3266746 3622895 4850995 5072053 6199130 6791393 7245790 8166865 9701990 10144106 13582786 13767001 16333730 18433781 25360265 27534002 33956965 36867562 50720530 57241741 67913930 68835005 92168905 96369007 114483482 129036467 137670010 184337810 192738014 258072934 286208705 400692187 481845035 572417410 645182335 801384374 963690070 1087593079 1290364670 2003460935 2175186158 4006921870 5437965395 7613151553 10875930790 15226303106 38065757765 76131515530