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51300810407 = 7111953661613
BaseRepresentation
bin101111110001110001…
…000011111010100111
311220102020112012001002
4233301301003322213
51320031001413112
635322310223515
73464165456630
oct576161037247
9156366465032
1051300810407
111a835a74180
129b38654b9b
134ab73cc822
1426a93c2887
151503b951c2
hexbf1c43ea7

51300810407 has 32 divisors (see below), whose sum is σ = 68596139520. Its totient is φ = 37156129920.

The previous prime is 51300810397. The next prime is 51300810469. The reversal of 51300810407 is 70401800315.

It is not a de Polignac number, because 51300810407 - 28 = 51300810151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51300810407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51300810007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253268 + ... + 408345.

It is an arithmetic number, because the mean of its divisors is an integer number (2143629360).

Almost surely, 251300810407 is an apocalyptic number.

51300810407 is a deficient number, since it is larger than the sum of its proper divisors (17295329113).

51300810407 is a wasteful number, since it uses less digits than its factorization.

51300810407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661703.

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 51300810407 in words is "fifty-one billion, three hundred million, eight hundred ten thousand, four hundred seven".

Divisors: 1 7 11 19 53 77 133 209 371 583 1007 1463 4081 7049 11077 77539 661613 4631291 7277743 12570647 35065489 50944201 87994529 138277117 245458423 385720379 666244291 967939819 2700042653 4663710037 7328687201 51300810407