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12152554031 = 132115495939
BaseRepresentation
bin10110101000101100…
…10100001000101111
31011100221011201010202
423110112110020233
5144342023212111
65325515224115
7610103001452
oct132426241057
934327151122
1012152554031
115176888792
122431a4803b
1311b8949097
14833dad499
154b1d56b3b
hex2d459422f

12152554031 has 8 divisors (see below), whose sum is σ = 12171654000. Its totient is φ = 12133471680.

The previous prime is 12152553991. The next prime is 12152554061. The reversal of 12152554031 is 13045525121.

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 12152554031 - 214 = 12152537647 is a prime.

It is a super-2 number, since 2×121525540312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12152553985 and 12152554003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152554061) 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, 2043260 + ... + 2049198.

It is an arithmetic number, because the mean of its divisors is an integer number (1521456750).

Almost surely, 212152554031 is an apocalyptic number.

12152554031 is a deficient number, since it is larger than the sum of its proper divisors (19099969).

12152554031 is a wasteful number, since it uses less digits than its factorization.

12152554031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 12152554031 in words is "twelve billion, one hundred fifty-two million, five hundred fifty-four thousand, thirty-one".

Divisors: 1 1321 1549 5939 2046229 7845419 9199511 12152554031