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252105130254 = 23193835774017
BaseRepresentation
bin1110101011001010100…
…0110000000100001110
3220002201122021112221110
43222302220300010032
513112302403132004
6311452051512450
724133254151515
oct3526250600416
9802648245843
10252105130254
1197a0a85681a
1240a395b8726
131aa09254bb3
14c2b823567c
156857a46589
hex3ab2a3010e

252105130254 has 32 divisors (see below), whose sum is σ = 532133498880. Its totient is φ = 79404268032.

The previous prime is 252105130243. The next prime is 252105130279. The reversal of 252105130254 is 452031501252.

It is a super-2 number, since 2×2521051302542 (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 2843347 + ... + 2930670.

It is an arithmetic number, because the mean of its divisors is an integer number (16629171840).

Almost surely, 2252105130254 is an apocalyptic number.

252105130254 is an abundant number, since it is smaller than the sum of its proper divisors (280028368626).

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

252105130254 is a wasteful number, since it uses less digits than its factorization.

252105130254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774424.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 252105130254 in words is "two hundred fifty-two billion, one hundred five million, one hundred thirty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 19 38 57 114 383 766 1149 2298 7277 14554 21831 43662 5774017 11548034 17322051 34644102 109706323 219412646 329118969 658237938 2211448511 4422897022 6634345533 13268691066 42017521709 84035043418 126052565127 252105130254