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397161054 = 232199311071
BaseRepresentation
bin10111101011000…
…011001001011110
31000200022212112200
4113223003021132
51303133123204
6103224312330
712561545643
oct2753031136
91020285480
10397161054
11194206a84
12b10126a6
1364389354
143aa65dca
1524d02539
hex17ac325e

397161054 has 24 divisors (see below), whose sum is σ = 861025152. Its totient is φ = 132308640.

The previous prime is 397161053. The next prime is 397161067. The reversal of 397161054 is 450161793.

397161054 is a `hidden beast` number, since 39 + 7 + 1 + 610 + 5 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397161053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30339 + ... + 41409.

It is an arithmetic number, because the mean of its divisors is an integer number (35876048).

Almost surely, 2397161054 is an apocalyptic number.

397161054 is an abundant number, since it is smaller than the sum of its proper divisors (463864098).

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

397161054 is a wasteful number, since it uses less digits than its factorization.

397161054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072 (or 13069 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 397161054 is about 19928.8999696421. The cubic root of 397161054 is about 735.0590317713.

It can be divided in two parts, 3971 and 61054, that added together give a square (65025 = 2552).

The spelling of 397161054 in words is "three hundred ninety-seven million, one hundred sixty-one thousand, fifty-four".

Divisors: 1 2 3 6 9 18 1993 3986 5979 11071 11958 17937 22142 33213 35874 66426 99639 199278 22064503 44129006 66193509 132387018 198580527 397161054