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51100601013 = 32711359205399
BaseRepresentation
bin101111100101110101…
…010100101010110101
311212220021210111101100
4233211311110222311
51314123223213023
635250355120313
73456214641030
oct574565245265
9155807714340
1051100601013
111a742a58970
129aa15a3099
134a84aa1127
14268a988017
1514e12e8c43
hexbe5d54ab5

51100601013 has 48 divisors (see below), whose sum is σ = 92282112000. Its totient is φ = 26471694240.

The previous prime is 51100601011. The next prime is 51100601021. The reversal of 51100601013 is 31010600115.

51100601013 is a `hidden beast` number, since 51 + 1 + 0 + 0 + 601 + 0 + 13 = 666.

It is not a de Polignac number, because 51100601013 - 21 = 51100601011 is a prime.

It is a super-2 number, since 2×511006010132 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100601011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146088 + ... + 351486.

It is an arithmetic number, because the mean of its divisors is an integer number (1922544000).

Almost surely, 251100601013 is an apocalyptic number.

It is an amenable number.

51100601013 is a deficient number, since it is larger than the sum of its proper divisors (41181510987).

51100601013 is a wasteful number, since it uses less digits than its factorization.

51100601013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205782 (or 205779 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The spelling of 51100601013 in words is "fifty-one billion, one hundred million, six hundred one thousand, thirteen".

Divisors: 1 3 7 9 11 21 33 63 77 99 231 359 693 1077 2513 3231 3949 7539 11847 22617 27643 35541 82929 205399 248787 616197 1437793 1848591 2259389 4313379 6778167 12940137 15815723 20334501 47447169 73738241 142341507 221214723 516167687 663644169 811120651 1548503061 2433361953 4645509183 5677844557 7300085859 17033533671 51100601013