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12074185631 = 52363136587
BaseRepresentation
bin10110011111010110…
…10111001110011111
31011011110201011220102
423033223113032133
5144211442420011
65314035411315
7605131612244
oct131753271637
934143634812
1012074185631
115136621412
12240b753b3b
1311a563a551
1482780d5cb
154aa02673b
hex2cfad739f

12074185631 has 8 divisors (see below), whose sum is σ = 12116774784. Its totient is φ = 12031671960.

The previous prime is 12074185597. The next prime is 12074185633. The reversal of 12074185631 is 13658147021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12074185631 is a prime.

It is a super-2 number, since 2×120741856312 (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 (12074185633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311720 + ... + 348306.

It is an arithmetic number, because the mean of its divisors is an integer number (1514596848).

Almost surely, 212074185631 is an apocalyptic number.

12074185631 is a deficient number, since it is larger than the sum of its proper divisors (42589153).

12074185631 is an equidigital number, since it uses as much as digits as its factorization.

12074185631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37741.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 12074185631 in words is "twelve billion, seventy-four million, one hundred eighty-five thousand, six hundred thirty-one".

Divisors: 1 523 631 36587 330013 19135001 23086397 12074185631