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38150331912 = 23347111375581
BaseRepresentation
bin100011100001111011…
…111101111000001000
310122110202120122220000
4203201323331320020
51111112441110122
625305342003000
72520254320320
oct434173757010
9118422518800
1038150331912
11151a7960030
127488576460
13379cac21c4
141bbca86280
15ed441c0ac
hex8e1efde08

38150331912 has 320 divisors, whose sum is σ = 134219859840. Its totient is φ = 9835084800.

The previous prime is 38150331911. The next prime is 38150331917. The reversal of 38150331912 is 21913305183.

38150331912 is a `hidden beast` number, since 38 + 1 + 503 + 31 + 91 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38150331911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6832962 + ... + 6838542.

It is an arithmetic number, because the mean of its divisors is an integer number (419437062).

Almost surely, 238150331912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38150331912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67109929920).

38150331912 is an abundant number, since it is smaller than the sum of its proper divisors (96069527928).

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

38150331912 is a wasteful number, since it uses less digits than its factorization.

38150331912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754 (or 5741 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 38150331912 in words is "thirty-eight billion, one hundred fifty million, three hundred thirty-one thousand, nine hundred twelve".