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12157602152 = 2312371228537
BaseRepresentation
bin10110101001010011…
…00100100101101000
31011101021200011212012
423110221210211220
5144344321232102
65330215335052
7610163625143
oct132451444550
934337604765
1012157602152
115179716493
122433681488
1311b99c5a37
1483492505a
154b2502752
hex2d4a64968

12157602152 has 16 divisors (see below), whose sum is σ = 22813950660. Its totient is φ = 6073881984.

The previous prime is 12157602109. The next prime is 12157602157. The reversal of 12157602152 is 25120675121.

It can be written as a sum of positive squares in 2 ways, for example, as 10345737796 + 1811864356 = 101714^2 + 42566^2 .

It is a super-2 number, since 2×121576021522 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12157602157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604373 + ... + 624164.

Almost surely, 212157602152 is an apocalyptic number.

It is an amenable number.

12157602152 is a deficient number, since it is larger than the sum of its proper divisors (10656348508).

12157602152 is a wasteful number, since it uses less digits than its factorization.

12157602152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229780 (or 1229776 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 12157602152 in words is "twelve billion, one hundred fifty-seven million, six hundred two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 1237 2474 4948 9896 1228537 2457074 4914148 9828296 1519700269 3039400538 6078801076 12157602152