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390085152 = 253233141139
BaseRepresentation
bin10111010000000…
…011101000100000
31000012000101020020
4113100003220200
51244330211102
6102412513440
712444445332
oct2720035040
91005011206
10390085152
11190213826
12aa77b880
1362a7c722
1439b43452
15243a5bbc
hex17403a20

390085152 has 192 divisors, whose sum is σ = 1137991680. Its totient is φ = 116582400.

The previous prime is 390085139. The next prime is 390085159. The reversal of 390085152 is 251580093.

It is not an unprimeable number, because it can be changed into a prime (390085159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2806299 + ... + 2806437.

It is an arithmetic number, because the mean of its divisors is an integer number (5927040).

Almost surely, 2390085152 is an apocalyptic number.

390085152 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 390085152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568995840).

390085152 is an abundant number, since it is smaller than the sum of its proper divisors (747906528).

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

390085152 is a wasteful number, since it uses less digits than its factorization.

390085152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 390085152 is about 19750.5734600290. The cubic root of 390085152 is about 730.6675272751.

The spelling of 390085152 in words is "three hundred ninety million, eighty-five thousand, one hundred fifty-two".