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252937400 = 23521264687
BaseRepresentation
bin11110001001110…
…00010010111000
3122121221112212212
433010320102320
51004222444100
641033154252
76160634552
oct1704702270
9577845785
10252937400
1111a85a681
127085b988
1340530701
14258424d2
1517314635
hexf1384b8

252937400 has 24 divisors (see below), whose sum is σ = 588079920. Its totient is φ = 101174880.

The previous prime is 252937379. The next prime is 252937403. The reversal of 252937400 is 4739252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252937403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632144 + ... + 632543.

It is an arithmetic number, because the mean of its divisors is an integer number (24503330).

Almost surely, 2252937400 is an apocalyptic number.

252937400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252937400 is an abundant number, since it is smaller than the sum of its proper divisors (335142520).

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

252937400 is a wasteful number, since it uses less digits than its factorization.

252937400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264703 (or 1264694 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 252937400 is about 15904.0057847072. The cubic root of 252937400 is about 632.4181858172.

The spelling of 252937400 in words is "two hundred fifty-two million, nine hundred thirty-seven thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1264687 2529374 5058748 6323435 10117496 12646870 25293740 31617175 50587480 63234350 126468700 252937400