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51005100048 = 2437314896803
BaseRepresentation
bin101111100000001001…
…000001000000010000
311212122122002112200120
4233200021001000100
51313424301200143
635233104150240
73453645124410
oct574011010020
9155578075616
1051005100048
111a6a405a651
129a75608380
134a6b074396
14267c008640
1514d7c32383
hexbe0241010

51005100048 has 80 divisors (see below), whose sum is σ = 155444146176. Its totient is φ = 14102789760.

The previous prime is 51005100043. The next prime is 51005100049. The reversal of 51005100048 is 84000150015.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (51005100043) 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, 2437986 + ... + 2458817.

Almost surely, 251005100048 is an apocalyptic number.

It is an amenable number.

51005100048 is an abundant number, since it is smaller than the sum of its proper divisors (104439046128).

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

51005100048 is a wasteful number, since it uses less digits than its factorization.

51005100048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896852 (or 4896846 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The spelling of 51005100048 in words is "fifty-one billion, five million, one hundred thousand, forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 31 42 48 56 62 84 93 112 124 168 186 217 248 336 372 434 496 651 744 868 1302 1488 1736 2604 3472 5208 10416 4896803 9793606 14690409 19587212 29380818 34277621 39174424 58761636 68555242 78348848 102832863 117523272 137110484 151800893 205665726 235046544 274220968 303601786 411331452 455402679 548441936 607203572 822662904 910805358 1062606251 1214407144 1645325808 1821610716 2125212502 2428814288 3187818753 3643221432 4250425004 6375637506 7286442864 8500850008 12751275012 17001700016 25502550024 51005100048