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51351056054 = 2109235555303
BaseRepresentation
bin101111110100110000…
…101110111010110110
311220112202001221002222
4233310300232322312
51320131332243204
635331303202342
73465345526454
oct576460567266
9156482057088
1051351056054
111a861372501
129b514463b2
134ac494298c
1426b1d419d4
1515082bcabe
hexbf4c2eeb6

51351056054 has 8 divisors (see below), whose sum is σ = 77733250320. Its totient is φ = 25439972616.

The previous prime is 51351056047. The next prime is 51351056083. The reversal of 51351056054 is 45065015315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×513510560542 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

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, 117777434 + ... + 117777869.

It is an arithmetic number, because the mean of its divisors is an integer number (9716656290).

Almost surely, 251351056054 is an apocalyptic number.

51351056054 is a deficient number, since it is larger than the sum of its proper divisors (26382194266).

51351056054 is a wasteful number, since it uses less digits than its factorization.

51351056054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235555414.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 51351056054 in words is "fifty-one billion, three hundred fifty-one million, fifty-six thousand, fifty-four".

Divisors: 1 2 109 218 235555303 471110606 25675528027 51351056054