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311152152 = 23312964673
BaseRepresentation
bin10010100010111…
…100111000011000
3210200111011111210
4102202330320120
51114123332102
650513023120
710465515063
oct2242747030
9720434453
10311152152
1114a701243
1288254aa0
134c603bcc
142d4778da
151c4b336c
hex128bce18

311152152 has 16 divisors (see below), whose sum is σ = 777880440. Its totient is φ = 103717376.

The previous prime is 311152133. The next prime is 311152181. The reversal of 311152152 is 251251113.

It is a super-2 number, since 2×3111521522 = 193631323388462208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6482313 + ... + 6482360.

Almost surely, 2311152152 is an apocalyptic number.

It is an amenable number.

311152152 is an abundant number, since it is smaller than the sum of its proper divisors (466728288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311152152 is a wasteful number, since it uses less digits than its factorization.

311152152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12964682 (or 12964678 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 311152152 is about 17639.5054352439. The cubic root of 311152152 is about 677.6273654783.

The spelling of 311152152 in words is "three hundred eleven million, one hundred fifty-two thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 12964673 25929346 38894019 51858692 77788038 103717384 155576076 311152152