Search a number
-
+
51102657045 = 32511971106321
BaseRepresentation
bin101111100101111101…
…001010101000010101
311212220102122221201200
4233211331022220111
51314124240011140
635250511143113
73456241263216
oct574575125025
9155812587650
1051102657045
111a744132670
129aa2214a99
134a85340c0b
14268ad6140d
1514e15a3030
hexbe5f4aa15

51102657045 has 48 divisors (see below), whose sum is σ = 96730905024. Its totient is φ = 24751296000.

The previous prime is 51102657007. The next prime is 51102657059. The reversal of 51102657045 is 54075620115.

51102657045 is a `hidden beast` number, since 51 + 10 + 26 + 570 + 4 + 5 = 666.

It is not a de Polignac number, because 51102657045 - 211 = 51102654997 is a prime.

It is a super-2 number, since 2×511026570452 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 427485 + ... + 533805.

It is an arithmetic number, because the mean of its divisors is an integer number (2015227188).

Almost surely, 251102657045 is an apocalyptic number.

51102657045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51102657045 is a deficient number, since it is larger than the sum of its proper divisors (45628247979).

51102657045 is a wasteful number, since it uses less digits than its factorization.

51102657045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107314 (or 107311 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 51102657045 in words is "fifty-one billion, one hundred two million, six hundred fifty-seven thousand, forty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 971 2913 4855 8739 10681 14565 32043 43695 53405 96129 106321 160215 318963 480645 531605 956889 1169531 1594815 3508593 4784445 5847655 10525779 17542965 52628895 103237691 309713073 516188455 929139219 1135614601 1548565365 3406843803 4645696095 5678073005 10220531409 17034219015 51102657045