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82151875875 = 3531597137177
BaseRepresentation
bin100110010000010100…
…0100010010100100011
321212001022020200202110
41030200220202110203
52321221340012000
6101423503450403
75635541265126
oct1144050422443
9255038220673
1082151875875
11319276572a3
1213b085b6a03
137992bb6b54
143d9488a3bd
15220c381850
hex1320a22523

82151875875 has 32 divisors (see below), whose sum is σ = 136787317056. Its totient is φ = 43786579200.

The previous prime is 82151875807. The next prime is 82151875901. The reversal of 82151875875 is 57857815128.

It is not a de Polignac number, because 82151875875 - 210 = 82151874851 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 530287 + ... + 667463.

It is an arithmetic number, because the mean of its divisors is an integer number (4274603658).

Almost surely, 282151875875 is an apocalyptic number.

82151875875 is a deficient number, since it is larger than the sum of its proper divisors (54635441181).

82151875875 is a wasteful number, since it uses less digits than its factorization.

82151875875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138792 (or 138782 counting only the distinct ones).

The product of its digits is 6272000, while the sum is 57.

The spelling of 82151875875 in words is "eighty-two billion, one hundred fifty-one million, eight hundred seventy-five thousand, eight hundred seventy-five".

Divisors: 1 3 5 15 25 75 125 375 1597 4791 7985 23955 39925 119775 137177 199625 411531 598875 685885 2057655 3429425 10288275 17147125 51441375 219071669 657215007 1095358345 3286075035 5476791725 16430375175 27383958625 82151875875