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51031062120 = 2335425258851
BaseRepresentation
bin101111100001101100…
…000011011001101000
311212201102221112221210
4233201230003121220
51314002422441440
635235432433120
73454411604523
oct574154033150
9155642845853
1051031062120
111a707782305
129a822487a0
134a7356445c
142681645bba
1514da15ea80
hexbe1b03668

51031062120 has 32 divisors (see below), whose sum is σ = 153093186720. Its totient is φ = 13608283200.

The previous prime is 51031062101. The next prime is 51031062133. The reversal of 51031062120 is 2126013015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212629306 + ... + 212629545.

It is an arithmetic number, because the mean of its divisors is an integer number (4784162085).

Almost surely, 251031062120 is an apocalyptic number.

It is an amenable number.

51031062120 is an abundant number, since it is smaller than the sum of its proper divisors (102062124600).

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

51031062120 is a wasteful number, since it uses less digits than its factorization.

51031062120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425258865 (or 425258861 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 51031062120 its reverse (2126013015), we get a palindrome (53157075135).

The spelling of 51031062120 in words is "fifty-one billion, thirty-one million, sixty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 425258851 850517702 1275776553 1701035404 2126294255 2551553106 3402070808 4252588510 5103106212 6378882765 8505177020 10206212424 12757765530 17010354040 25515531060 51031062120