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51096988 = 2241311567
BaseRepresentation
bin1100001011101…
…0110110011100
310120010222220001
43002322312130
5101040100423
65023104044
71160213545
oct302726634
9116128801
1051096988
112692aa18
1215142024
13a780807
146b014cc
154744cad
hex30bad9c

51096988 has 12 divisors (see below), whose sum is σ = 91600992. Its totient is φ = 24925280.

The previous prime is 51096977. The next prime is 51097003. The reversal of 51096988 is 88969015.

It is a super-2 number, since 2×510969882 = 5221804365344288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155620 + ... + 155947.

It is an arithmetic number, because the mean of its divisors is an integer number (7633416).

Almost surely, 251096988 is an apocalyptic number.

It is an amenable number.

51096988 is a deficient number, since it is larger than the sum of its proper divisors (40504004).

51096988 is a wasteful number, since it uses less digits than its factorization.

51096988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311612 (or 311610 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 51096988 is about 7148.2157214231. The cubic root of 51096988 is about 371.0779085784.

The spelling of 51096988 in words is "fifty-one million, ninety-six thousand, nine hundred eighty-eight".

Divisors: 1 2 4 41 82 164 311567 623134 1246268 12774247 25548494 51096988