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253023984 = 24323156681
BaseRepresentation
bin11110001010011…
…01011011110000
3122122002221122200
433011031123300
51004233231414
641035103200
76161445153
oct1705153360
9578087580
10253023984
1111a909734
12708a1b00
1340560c45
1425865c9a
1517330109
hexf14d6f0

253023984 has 60 divisors (see below), whose sum is σ = 730971072. Its totient is φ = 81619200.

The previous prime is 253023977. The next prime is 253024021. The reversal of 253023984 is 489320352.

It is a super-2 number, since 2×2530239842 = 128042272958464512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23877 + ... + 32804.

Almost surely, 2253023984 is an apocalyptic number.

253023984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253023984 is an abundant number, since it is smaller than the sum of its proper divisors (477947088).

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

253023984 is a wasteful number, since it uses less digits than its factorization.

253023984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56726 (or 56717 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 253023984 is about 15906.7276333003. The cubic root of 253023984 is about 632.4903394401.

The spelling of 253023984 in words is "two hundred fifty-three million, twenty-three thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 31 36 48 62 72 93 124 144 186 248 279 372 496 558 744 1116 1488 2232 4464 56681 113362 170043 226724 340086 453448 510129 680172 906896 1020258 1360344 1757111 2040516 2720688 3514222 4081032 5271333 7028444 8162064 10542666 14056888 15813999 21085332 28113776 31627998 42170664 63255996 84341328 126511992 253023984