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12255630031 = 56359336709
BaseRepresentation
bin10110110100111111…
…00001001011001111
31011122010010111211101
423122133201023033
5200044420130111
65344040403531
7612464064541
oct133237411317
934563114741
1012255630031
115219a90267
1224604765a7
1312040c89b8
14843961691
154bae17bc1
hex2da7e12cf

12255630031 has 8 divisors (see below), whose sum is σ = 12298437360. Its totient is φ = 12212898432.

The previous prime is 12255630011. The next prime is 12255630071. The reversal of 12255630031 is 13003655221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12255630031 - 223 = 12247241423 is a prime.

It is a super-2 number, since 2×122556300312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255630001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315505 + ... + 352213.

It is an arithmetic number, because the mean of its divisors is an integer number (1537304670).

Almost surely, 212255630031 is an apocalyptic number.

12255630031 is a deficient number, since it is larger than the sum of its proper divisors (42807329).

12255630031 is an equidigital number, since it uses as much as digits as its factorization.

12255630031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37865.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 12255630031 in words is "twelve billion, two hundred fifty-five million, six hundred thirty thousand, thirty-one".

Divisors: 1 563 593 36709 333859 20667167 21768437 12255630031