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253512834 = 23193218923
BaseRepresentation
bin11110001110001…
…00110010000010
3122200000210020020
433013010302002
51004344402314
641053354310
76165552321
oct1707046202
9580023206
10253512834
11120112a43
1270a98996
13406a25c3
14259520b8
15173c9da9
hexf1c4c82

253512834 has 16 divisors (see below), whose sum is σ = 509655072. Its totient is φ = 84066048.

The previous prime is 253512827. The next prime is 253512841. The reversal of 253512834 is 438215352.

It is an interprime number because it is at equal distance from previous prime (253512827) and next prime (253512841).

It is a junction number, because it is equal to n+sod(n) for n = 253512795 and 253512804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108304 + ... + 110619.

It is an arithmetic number, because the mean of its divisors is an integer number (31853442).

Almost surely, 2253512834 is an apocalyptic number.

253512834 is an abundant number, since it is smaller than the sum of its proper divisors (256142238).

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

253512834 is a wasteful number, since it uses less digits than its factorization.

253512834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219121.

The product of its digits is 28800, while the sum is 33.

The square root of 253512834 is about 15922.0863582635. The cubic root of 253512834 is about 632.8974075602.

The spelling of 253512834 in words is "two hundred fifty-three million, five hundred twelve thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 193 386 579 1158 218923 437846 656769 1313538 42252139 84504278 126756417 253512834