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253688088 = 23312783231
BaseRepresentation
bin11110001111011…
…11100100011000
3122200100200122010
433013233210120
51004421004323
641101225520
76200212263
oct1707574430
9580320563
10253688088
11120222685
1270b622a0
13407342c4
1425999cda
1517411c93
hexf1ef918

253688088 has 32 divisors (see below), whose sum is σ = 639221760. Its totient is φ = 83895840.

The previous prime is 253688069. The next prime is 253688101. The reversal of 253688088 is 880886352.

It is a congruent number.

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, 38568 + ... + 44663.

It is an arithmetic number, because the mean of its divisors is an integer number (19975680).

Almost surely, 2253688088 is an apocalyptic number.

It is an amenable number.

253688088 is an abundant number, since it is smaller than the sum of its proper divisors (385533672).

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

253688088 is a wasteful number, since it uses less digits than its factorization.

253688088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83367 (or 83363 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 253688088 is about 15927.5888947449. The cubic root of 253688088 is about 633.0432151065.

The spelling of 253688088 in words is "two hundred fifty-three million, six hundred eighty-eight thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 127 254 381 508 762 1016 1524 3048 83231 166462 249693 332924 499386 665848 998772 1997544 10570337 21140674 31711011 42281348 63422022 84562696 126844044 253688088