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253739875 = 5317971231
BaseRepresentation
bin11110001111111…
…00001101100011
3122200110022200011
433013330031203
51004424134000
641102305351
76200516254
oct1707741543
9580408604
10253739875
11120258584
1270b88257
1340751a4c
14259b0b2b
15174222ba
hexf1fc363

253739875 has 32 divisors (see below), whose sum is σ = 339026688. Its totient is φ = 188928000.

The previous prime is 253739873. The next prime is 253739903. The reversal of 253739875 is 578937352.

It is not a de Polignac number, because 253739875 - 21 = 253739873 is a prime.

It is a Duffinian number.

Its product of digits (1587600) is a multiple of the sum of its prime divisors (1350).

It is not an unprimeable number, because it can be changed into a prime (253739873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205510 + ... + 206740.

It is an arithmetic number, because the mean of its divisors is an integer number (10594584).

Almost surely, 2253739875 is an apocalyptic number.

253739875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253739875 is a deficient number, since it is larger than the sum of its proper divisors (85286813).

253739875 is a wasteful number, since it uses less digits than its factorization.

253739875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1350 counting only the distinct ones).

The product of its digits is 1587600, while the sum is 49.

The square root of 253739875 is about 15929.2145129633. The cubic root of 253739875 is about 633.0862879192.

The spelling of 253739875 in words is "two hundred fifty-three million, seven hundred thirty-nine thousand, eight hundred seventy-five".

Divisors: 1 5 17 25 85 97 125 425 485 1231 1649 2125 2425 6155 8245 12125 20927 30775 41225 104635 119407 153875 206125 523175 597035 2029919 2615875 2985175 10149595 14925875 50747975 253739875