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13031312130100 = 22521119457608863
BaseRepresentation
bin1011110110100001011010…
…1110110000000000110100
31201010210002112210112202201
42331220112232300000310
53202001111401130400
643414300244114244
72513324030331415
oct275502656600064
951123075715681
1013031312130100
114174603a76570
121565680095984
13736b02b44754
14330a0c82b80c
15178e9359a06a
hexbda16bb0034

13031312130100 has 72 divisors (see below), whose sum is σ = 30850305954048. Its totient is φ = 4738407628800.

The previous prime is 13031312130043. The next prime is 13031312130169. The reversal of 13031312130100 is 103121313031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21098269 + ... + 21707131.

It is an arithmetic number, because the mean of its divisors is an integer number (428476471584).

Almost surely, 213031312130100 is an apocalyptic number.

13031312130100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031312130100 is an abundant number, since it is smaller than the sum of its proper divisors (17818993823948).

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

13031312130100 is a wasteful number, since it uses less digits than its factorization.

13031312130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628345 (or 628338 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13031312130100 its reverse (103121313031), we get a palindrome (13134433443131).

The spelling of 13031312130100 in words is "thirteen trillion, thirty-one billion, three hundred twelve million, one hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 19457 38914 77828 97285 194570 214027 389140 428054 486425 608863 856108 972850 1070135 1217726 1945700 2140270 2435452 3044315 4280540 5350675 6088630 6697493 10701350 12177260 13394986 15221575 21402700 26789972 30443150 33487465 60886300 66974930 133949860 167437325 334874650 669749300 11846647391 23693294782 47386589564 59233236955 118466473910 130313121301 236932947820 260626242602 296166184775 521252485204 592332369550 651565606505 1184664739100 1303131213010 2606262426020 3257828032525 6515656065050 13031312130100