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253344872168 = 23353431208147
BaseRepresentation
bin1110101111110010000…
…1111111011011101000
3220012221001001222010122
43223330201333123220
513122322241402133
6312215055502412
724206056611443
oct3537441773350
9805831058118
10253344872168
1198496637213
1241124827a08
131ab760525ab
14c394b4c65a
1568cb7d2498
hex3afc87f6e8

253344872168 has 32 divisors (see below), whose sum is σ = 477474860160. Its totient is φ = 126019914240.

The previous prime is 253344872093. The next prime is 253344872177. The reversal of 253344872168 is 861278443352.

It is a super-2 number, since 2×2533448721682 (a number of 24 digits) contains 22 as substring.

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, 1113071 + ... + 1321217.

It is an arithmetic number, because the mean of its divisors is an integer number (14921089380).

Almost surely, 2253344872168 is an apocalyptic number.

It is an amenable number.

253344872168 is a deficient number, since it is larger than the sum of its proper divisors (224129987992).

253344872168 is a wasteful number, since it uses less digits than its factorization.

253344872168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208937 (or 208933 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 53.

The spelling of 253344872168 in words is "two hundred fifty-three billion, three hundred forty-four million, eight hundred seventy-two thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 353 431 706 862 1412 1724 2824 3448 152143 208147 304286 416294 608572 832588 1217144 1665176 73475891 89711357 146951782 179422714 293903564 358845428 587807128 717690856 31668109021 63336218042 126672436084 253344872168