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12552611331 = 3131733175869
BaseRepresentation
bin10111011000011000…
…11010011000000011
31012101210221201120210
423230030122120003
5201201432030311
65433330005203
7623031302331
oct135414323003
935353851523
1012552611331
115361692757
122523a16803
1312507aa790
1487118ab51
154d702c3a6
hex2ec31a603

12552611331 has 32 divisors (see below), whose sum is σ = 18188735040. Its totient is φ = 7654500864.

The previous prime is 12552611221. The next prime is 12552611347. The reversal of 12552611331 is 13311625521.

It is not a de Polignac number, because 12552611331 - 213 = 12552603139 is a prime.

It is a super-2 number, since 2×125526113312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12552611131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2135865 + ... + 2141733.

It is an arithmetic number, because the mean of its divisors is an integer number (568397970).

Almost surely, 212552611331 is an apocalyptic number.

12552611331 is a deficient number, since it is larger than the sum of its proper divisors (5636123709).

12552611331 is a wasteful number, since it uses less digits than its factorization.

12552611331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375.

The product of its digits is 5400, while the sum is 30.

The spelling of 12552611331 in words is "twelve billion, five hundred fifty-two million, six hundred eleven thousand, three hundred thirty-one".

Divisors: 1 3 13 39 173 317 519 951 2249 4121 5869 6747 12363 17607 54841 76297 164523 228891 712933 1015337 1860473 2138799 3046011 5581419 13199381 24186149 39598143 72558447 321861829 965585487 4184203777 12552611331