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97457073 = 3717272989
BaseRepresentation
bin1011100111100…
…01001110110001
320210101022222020
411303301032301
5144422111243
613400502053
72262241260
oct563611661
9223338866
1097457073
1150014a3a
122877a929
131726320c
14cd2c5d7
158851283
hex5cf13b1

97457073 has 16 divisors (see below), whose sum is σ = 157242240. Its totient is φ = 52413696.

The previous prime is 97457071. The next prime is 97457083. The reversal of 97457073 is 37075479.

It is not a de Polignac number, because 97457073 - 21 = 97457071 is a prime.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (97457071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136138 + ... + 136851.

It is an arithmetic number, because the mean of its divisors is an integer number (9827640).

Almost surely, 297457073 is an apocalyptic number.

It is an amenable number.

97457073 is a deficient number, since it is larger than the sum of its proper divisors (59785167).

97457073 is a wasteful number, since it uses less digits than its factorization.

97457073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273016.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 97457073 is about 9872.0348966158. The cubic root of 97457073 is about 460.1906471883.

The spelling of 97457073 in words is "ninety-seven million, four hundred fifty-seven thousand, seventy-three".

Divisors: 1 3 7 17 21 51 119 357 272989 818967 1910923 4640813 5732769 13922439 32485691 97457073