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76931538470 = 2515241504767
BaseRepresentation
bin100011110100101111…
…0100001111000100110
321100120111021002002122
41013221132201320212
52230023433212340
655201501505542
75362302200423
oct1075136417046
9240514232078
1076931538470
112a698936566
1212ab02722b2
1373405000c7
143a1b430d4a
152003e04db5
hex11e97a1e26

76931538470 has 16 divisors (see below), whose sum is σ = 138486129408. Its totient is φ = 30770535360.

The previous prime is 76931538457. The next prime is 76931538491. The reversal of 76931538470 is 7483513967.

It is a super-2 number, since 2×769315384702 (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 99974 + ... + 404793.

It is an arithmetic number, because the mean of its divisors is an integer number (8655383088).

Almost surely, 276931538470 is an apocalyptic number.

76931538470 is a deficient number, since it is larger than the sum of its proper divisors (61554590938).

76931538470 is a wasteful number, since it uses less digits than its factorization.

76931538470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520015.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 76931538470 in words is "seventy-six billion, nine hundred thirty-one million, five hundred thirty-eight thousand, four hundred seventy".

Divisors: 1 2 5 10 15241 30482 76205 152410 504767 1009534 2523835 5047670 7693153847 15386307694 38465769235 76931538470