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12104152431 = 372234383257
BaseRepresentation
bin10110100010111011…
…01011010101101111
31011020120002122121220
423101131223111233
5144242130334211
65321025554423
7605644412100
oct132135532557
934216078556
1012104152431
115151529968
1224197a5a13
1311ab900397
1482b7b03a7
154ac995806
hex2d176b56f

12104152431 has 48 divisors (see below), whose sum is σ = 20045862144. Its totient is φ = 6461997696.

The previous prime is 12104152421. The next prime is 12104152433. The reversal of 12104152431 is 13425140121.

It is not a de Polignac number, because 12104152431 - 29 = 12104151919 is a prime.

It is a super-2 number, since 2×121041524312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12104152433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103755 + ... + 187011.

It is an arithmetic number, because the mean of its divisors is an integer number (417622128).

Almost surely, 212104152431 is an apocalyptic number.

12104152431 is a deficient number, since it is larger than the sum of its proper divisors (7941709713).

12104152431 is a wasteful number, since it uses less digits than its factorization.

12104152431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83340 (or 83333 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 12104152431 its reverse (13425140121), we get a palindrome (25529292552).

The spelling of 12104152431 in words is "twelve billion, one hundred four million, one hundred fifty-two thousand, four hundred thirty-one".

Divisors: 1 3 7 21 23 43 49 69 129 147 161 301 483 903 989 1127 2107 2967 3381 6321 6923 20769 48461 83257 145383 249771 582799 1748397 1914911 3580051 4079593 5744733 10740153 12238779 13404377 25060357 40213131 75181071 82341173 93830639 175422499 247023519 281491917 526267497 576388211 1729164633 4034717477 12104152431