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76572715122 = 23672472
BaseRepresentation
bin100011101010000010…
…1101110100001110010
321022122111001222000000
41013110011232201302
52223310103340442
655102123010430
75350354224261
oct1072405564162
9238574058000
1076572715122
112a524335242
1212a10069a16
1372b4077ab7
1439c59085d8
151ed2676d4c
hex11d416e872

76572715122 has 42 divisors (see below), whose sum is σ = 172233596703. Its totient is φ = 25520716332.

The previous prime is 76572715099. The next prime is 76572715123. The reversal of 76572715122 is 22151727567.

76572715122 is a `hidden beast` number, since 7 + 6 + 572 + 7 + 1 + 51 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38286357561 + 38286357561 = 195669^2 + 195669^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=195669.

It is not an unprimeable number, because it can be changed into a prime (76572715123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 10562503 + ... + 10569749.

Almost surely, 276572715122 is an apocalyptic number.

76572715122 is an abundant number, since it is smaller than the sum of its proper divisors (95660881581).

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

76572715122 is an frugal number, since it uses more digits than its factorization.

76572715122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14514 (or 7252 counting only the distinct ones).

The product of its digits is 411600, while the sum is 45.

The spelling of 76572715122 in words is "seventy-six billion, five hundred seventy-two million, seven hundred fifteen thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 729 1458 7247 14494 21741 43482 65223 130446 195669 391338 587007 1174014 1761021 3522042 5283063 10566126 52519009 105038018 157557027 315114054 472671081 945342162 1418013243 2836026486 4254039729 8508079458 12762119187 25524238374 38286357561 76572715122