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51100896 = 25371131223
BaseRepresentation
bin1100001011101…
…1110011100000
310120011012020210
43002323303200
5101040212041
65023134120
71160231130
oct302736340
9116135223
1051100896
1126932950
1215144340
13a782522
146b02ac0
154746016
hex30bbce0

51100896 has 192 divisors, whose sum is σ = 173408256. Its totient is φ = 12787200.

The previous prime is 51100879. The next prime is 51100921. The reversal of 51100896 is 69800115.

It is a happy number.

51100896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×511008962 = 5222603144005632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 229041 + ... + 229263.

It is an arithmetic number, because the mean of its divisors is an integer number (903168).

Almost surely, 251100896 is an apocalyptic number.

51100896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51100896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86704128).

51100896 is an abundant number, since it is smaller than the sum of its proper divisors (122307360).

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

51100896 is a wasteful number, since it uses less digits than its factorization.

51100896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 51100896 is about 7148.4890711255. The cubic root of 51100896 is about 371.0873685978.

The spelling of 51100896 in words is "fifty-one million, one hundred thousand, eight hundred ninety-six".