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51350465404 = 22717149724021
BaseRepresentation
bin101111110100101110…
…011110101101111100
311220112200221220220001
4233310232132231330
51320131204343104
635331242404044
73465340516450
oct576456365574
9156480856801
1051350465404
111a860aa9767
129b51200624
134ac4796b94
1426b1c2a660
151508202aa4
hexbf4b9eb7c

51350465404 has 48 divisors (see below), whose sum is σ = 109472126400. Its totient is φ = 20573752320.

The previous prime is 51350465399. The next prime is 51350465407. The reversal of 51350465404 is 40456405315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350465407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291087 + ... + 432934.

It is an arithmetic number, because the mean of its divisors is an integer number (2280669300).

Almost surely, 251350465404 is an apocalyptic number.

It is an amenable number.

51350465404 is an abundant number, since it is smaller than the sum of its proper divisors (58121660996).

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

51350465404 is a wasteful number, since it uses less digits than its factorization.

51350465404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724198 (or 724196 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 51350465404 in words is "fifty-one billion, three hundred fifty million, four hundred sixty-five thousand, four hundred four".

Divisors: 1 2 4 7 14 17 28 34 68 119 149 238 298 476 596 1043 2086 2533 4172 5066 10132 17731 35462 70924 724021 1448042 2896084 5068147 10136294 12308357 20272588 24616714 49233428 86158499 107879129 172316998 215758258 344633996 431516516 755153903 1510307806 1833945193 3020615612 3667890386 7335780772 12837616351 25675232702 51350465404