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253500090 = 235171926161
BaseRepresentation
bin11110001110000…
…01101010111010
3122200000010202020
433013001222322
51004344000330
641053215310
76165500214
oct1707015272
9580003666
10253500090
11120104408
1270a91536
134069986c
142594b5b4
15173c6210
hexf1c1aba

253500090 has 64 divisors (see below), whose sum is σ = 678119040. Its totient is φ = 60272640.

The previous prime is 253500083. The next prime is 253500103. The reversal of 253500090 is 90005352.

It is a self number, because there is not a number n which added to its sum of digits gives 253500090.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3391 + ... + 22770.

It is an arithmetic number, because the mean of its divisors is an integer number (10595610).

Almost surely, 2253500090 is an apocalyptic number.

253500090 is an abundant number, since it is smaller than the sum of its proper divisors (424618950).

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

253500090 is a wasteful number, since it uses less digits than its factorization.

253500090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26207.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 253500090 is about 15921.6861544247. The cubic root of 253500090 is about 632.8868022067.

The spelling of 253500090 in words is "two hundred fifty-three million, five hundred thousand, ninety".

Divisors: 1 2 3 5 6 10 15 17 19 30 34 38 51 57 85 95 102 114 170 190 255 285 323 510 570 646 969 1615 1938 3230 4845 9690 26161 52322 78483 130805 156966 261610 392415 444737 497059 784830 889474 994118 1334211 1491177 2223685 2485295 2668422 2982354 4447370 4970590 6671055 7455885 8450003 13342110 14911770 16900006 25350009 42250015 50700018 84500030 126750045 253500090