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51996896 = 257232129
BaseRepresentation
bin1100011001011…
…0100011100000
310121211201022222
43012112203200
5101302400041
65054250212
71200652310
oct306264340
9117751288
1051996896
1127395046
12154b6968
13aa072c3
146c97440
15487174b
hex31968e0

51996896 has 24 divisors (see below), whose sum is σ = 116993520. Its totient is φ = 22284288.

The previous prime is 51996881. The next prime is 51996907. The reversal of 51996896 is 69869915.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115841 + ... + 116288.

It is an arithmetic number, because the mean of its divisors is an integer number (4874730).

Almost surely, 251996896 is an apocalyptic number.

51996896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51996896 is an abundant number, since it is smaller than the sum of its proper divisors (64996624).

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

51996896 is a wasteful number, since it uses less digits than its factorization.

51996896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232146 (or 232138 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 53.

The square root of 51996896 is about 7210.8873240399. The cubic root of 51996896 is about 373.2436887938.

The spelling of 51996896 in words is "fifty-one million, nine hundred ninety-six thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 232129 464258 928516 1624903 1857032 3249806 3714064 6499612 7428128 12999224 25998448 51996896