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253271590 = 251113177113
BaseRepresentation
bin11110001100010…
…01111000100110
3122122120112022021
433012021320212
51004314142330
641044253354
76163526065
oct1706117046
9578515267
10253271590
1111aa68770
12709a125a
1340619860
14258cc1dc
151737d67a
hexf189e26

253271590 has 32 divisors (see below), whose sum is σ = 535592736. Its totient is φ = 85013760.

The previous prime is 253271569. The next prime is 253271621. The reversal of 253271590 is 95172352.

253271590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2532715902 = 128292996602256200, which contains 22 as substring.

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, 87127 + ... + 89986.

It is an arithmetic number, because the mean of its divisors is an integer number (16737273).

Almost surely, 2253271590 is an apocalyptic number.

253271590 is an abundant number, since it is smaller than the sum of its proper divisors (282321146).

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

253271590 is a wasteful number, since it uses less digits than its factorization.

253271590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177144.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 253271590 is about 15914.5087891521. The cubic root of 253271590 is about 632.6965878008.

The spelling of 253271590 in words is "two hundred fifty-three million, two hundred seventy-one thousand, five hundred ninety".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 1430 177113 354226 885565 1771130 1948243 2302469 3896486 4604938 9741215 11512345 19482430 23024690 25327159 50654318 126635795 253271590