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312137952 = 25371789307
BaseRepresentation
bin10010100110101…
…101100011100000
3210202100020202220
4102212231203200
51114401403302
650550111040
710510062120
oct2246554340
9722306686
10312137952
11150214955
128864b480
134c88a819
142d652c80
151c60a4bc
hex129ad8e0

312137952 has 192 divisors, whose sum is σ = 1005903360. Its totient is φ = 82722816.

The previous prime is 312137941. The next prime is 312137953. The reversal of 312137952 is 259731213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312137953) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1016583 + ... + 1016889.

It is an arithmetic number, because the mean of its divisors is an integer number (5239080).

Almost surely, 2312137952 is an apocalyptic number.

312137952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312137952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502951680).

312137952 is an abundant number, since it is smaller than the sum of its proper divisors (693765408).

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

312137952 is a wasteful number, since it uses less digits than its factorization.

312137952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 425 counting only the distinct ones).

The product of its digits is 11340, while the sum is 33.

The square root of 312137952 is about 17667.4262981341. The cubic root of 312137952 is about 678.3422363524.

The spelling of 312137952 in words is "three hundred twelve million, one hundred thirty-seven thousand, nine hundred fifty-two".