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97137930 = 23517918089
BaseRepresentation
bin1011100101000…
…11010100001010
320202210010012010
411302203110022
5144331403210
613350000350
72256441651
oct562432412
9222703163
1097137930
114a91718a
12286460b6
1317180b86
14cc88198
1587db920
hex5ca350a

97137930 has 32 divisors (see below), whose sum is σ = 234446400. Its totient is φ = 25757312.

The previous prime is 97137919. The next prime is 97137959. The reversal of 97137930 is 3973179.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3675 + ... + 14414.

It is an arithmetic number, because the mean of its divisors is an integer number (7326450).

Almost surely, 297137930 is an apocalyptic number.

97137930 is an abundant number, since it is smaller than the sum of its proper divisors (137308470).

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

97137930 is a wasteful number, since it uses less digits than its factorization.

97137930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18278.

The product of its (nonzero) digits is 35721, while the sum is 39.

The square root of 97137930 is about 9855.8576491343. The cubic root of 97137930 is about 459.6877685828.

The spelling of 97137930 in words is "ninety-seven million, one hundred thirty-seven thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 179 358 537 895 1074 1790 2685 5370 18089 36178 54267 90445 108534 180890 271335 542670 3237931 6475862 9713793 16189655 19427586 32379310 48568965 97137930