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12152720075 = 522131228113
BaseRepresentation
bin10110101000101101…
…11100101011001011
31011100221111010220112
423110112330223023
5144342044020300
65325522544535
7610104262526
oct132426745313
934327433815
1012152720075
115176991511
122431b0814b
1311b89a6832
14834013bbd
154b1d8ae35
hex2d45bcacb

12152720075 has 12 divisors (see below), whose sum is σ = 15076510488. Its totient is φ = 9717571200.

The previous prime is 12152720053. The next prime is 12152720117. The reversal of 12152720075 is 57002725121.

It is not a de Polignac number, because 12152720075 - 224 = 12135942859 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 60782 + ... + 167331.

It is an arithmetic number, because the mean of its divisors is an integer number (1256375874).

Almost surely, 212152720075 is an apocalyptic number.

12152720075 is a deficient number, since it is larger than the sum of its proper divisors (2923790413).

12152720075 is a wasteful number, since it uses less digits than its factorization.

12152720075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230254 (or 230249 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The spelling of 12152720075 in words is "twelve billion, one hundred fifty-two million, seven hundred twenty thousand, seventy-five".

Divisors: 1 5 25 2131 10655 53275 228113 1140565 5702825 486108803 2430544015 12152720075