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258073156 = 221122397239
BaseRepresentation
bin11110110000111…
…10001001000100
3122222121110211001
433120132021010
51012031320111
641335223044
76252404605
oct1730361104
9588543731
10258073156
11122748200
1272517a84
134160b213
14263bbdac
15179cb1c1
hexf61e244

258073156 has 72 divisors (see below), whose sum is σ = 525530880. Its totient is φ = 110584320.

The previous prime is 258073111. The next prime is 258073183. The reversal of 258073156 is 651370852.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1079685 + ... + 1079923.

It is an arithmetic number, because the mean of its divisors is an integer number (7299040).

Almost surely, 2258073156 is an apocalyptic number.

It is an amenable number.

258073156 is an abundant number, since it is smaller than the sum of its proper divisors (267457724).

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

258073156 is a wasteful number, since it uses less digits than its factorization.

258073156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 258073156 is about 16064.6554896145. The cubic root of 258073156 is about 636.6698406623.

The spelling of 258073156 in words is "two hundred fifty-eight million, seventy-three thousand, one hundred fifty-six".

Divisors: 1 2 4 11 22 23 44 46 92 97 121 194 239 242 253 388 478 484 506 956 1012 1067 2134 2231 2629 2783 4268 4462 5258 5497 5566 8924 10516 10994 11132 11737 21988 23183 23474 24541 28919 46366 46948 49082 57838 60467 92732 98164 115676 120934 241868 255013 269951 510026 533209 539902 665137 1020052 1066418 1079804 1330274 2132836 2660548 2805143 5610286 5865299 11220572 11730598 23461196 64518289 129036578 258073156