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397088192 = 2623269761
BaseRepresentation
bin10111101010110…
…001010111000000
31000200012011121002
4113222301113000
51303123310232
6103222551132
712561123344
oct2752612700
91020164532
10397088192
11194167266
12b0b984a8
1364362137
143aa47624
1524cdab62
hex17ab15c0

397088192 has 28 divisors (see below), whose sum is σ = 822234576. Its totient is φ = 189911040.

The previous prime is 397088191. The next prime is 397088281. The reversal of 397088192 is 291880793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397088191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133409 + ... + 136352.

Almost surely, 2397088192 is an apocalyptic number.

397088192 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

397088192 is an abundant number, since it is smaller than the sum of its proper divisors (425146384).

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

397088192 is a wasteful number, since it uses less digits than its factorization.

397088192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269796 (or 269786 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 397088192 is about 19927.0718370763. The cubic root of 397088192 is about 735.0140784321.

The spelling of 397088192 in words is "three hundred ninety-seven million, eighty-eight thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 184 368 736 1472 269761 539522 1079044 2158088 4316176 6204503 8632352 12409006 17264704 24818012 49636024 99272048 198544096 397088192