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253085365 = 51337472239
BaseRepresentation
bin11110001010111…
…00011010110101
3122122020001212001
433011130122311
51004242212430
641040255301
76162122131
oct1705343265
9578201761
10253085365
1111a950865
1270911531
1340582b70
14258803c1
15173433ca
hexf15c6b5

253085365 has 32 divisors (see below), whose sum is σ = 343203840. Its totient is φ = 177894144.

The previous prime is 253085359. The next prime is 253085369. The reversal of 253085365 is 563580352.

253085365 = T2758 + T2759 + ... + T2822.

It is a cyclic number.

It is not a de Polignac number, because 253085365 - 27 = 253085237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253085369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111916 + ... + 114154.

It is an arithmetic number, because the mean of its divisors is an integer number (10725120).

Almost surely, 2253085365 is an apocalyptic number.

It is an amenable number.

253085365 is a deficient number, since it is larger than the sum of its proper divisors (90118475).

253085365 is a wasteful number, since it uses less digits than its factorization.

253085365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 253085365 is about 15908.6569200546. The cubic root of 253085365 is about 632.5414805085.

The spelling of 253085365 in words is "two hundred fifty-three million, eighty-five thousand, three hundred sixty-five".

Divisors: 1 5 13 37 47 65 185 235 481 611 1739 2239 2405 3055 8695 11195 22607 29107 82843 105233 113035 145535 414215 526165 1076959 1368029 3893621 5384795 6840145 19468105 50617073 253085365