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131131133132032 = 2811221611195887
BaseRepresentation
bin11101110100001101011000…
…100110111111110100000000
3122012022000101010120000210201
4131310031120212333310000
5114141423030040211112
61142520451054334544
736422624502533005
oct3564153046776400
9565260333500721
10131131133132032
1138867446087100
121285a1131ba454
1358227c7406977
142454ad03958ac
15102604d3a1257
hex7743589bfd00

131131133132032 has 108 divisors (see below), whose sum is σ = 287723498344128. Its totient is φ = 59601998156800.

The previous prime is 131131133131949. The next prime is 131131133132033. The reversal of 131131133132032 is 230231331131131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131133132033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 669324393 + ... + 669520279.

Almost surely, 2131131133132032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131131133132032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143861749172064).

131131133132032 is an abundant number, since it is smaller than the sum of its proper divisors (156592365212096).

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

131131133132032 is a wasteful number, since it uses less digits than its factorization.

131131133132032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217536 (or 217511 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 131131133132032 its reverse (230231331131131), we get a palindrome (361362464263163).

The spelling of 131131133132032 in words is "one hundred thirty-one trillion, one hundred thirty-one billion, one hundred thirty-three million, one hundred thirty-two thousand, thirty-two".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 256 352 484 704 968 1408 1936 2816 3872 7744 15488 21611 30976 43222 86444 172888 195887 237721 345776 391774 475442 691552 783548 950884 1383104 1567096 1901768 2154757 2614931 2766208 3134192 3803536 4309514 5229862 5532416 6268384 7607072 8619028 10459724 12536768 15214144 17238056 20919448 23702327 25073536 30428288 34476112 41838896 47404654 50147072 60856576 68952224 83677792 94809308 137904448 167355584 189618616 275808896 334711168 379237232 551617792 669422336 758474464 1516948928 3033897856 4233313957 6067795712 8466627914 16933255828 33866511656 46566453527 67733023312 93132907054 135466046624 186265814108 270932093248 372531628216 512230988797 541864186496 745063256432 1024461977594 1083728372992 1490126512864 2048923955188 2980253025728 4097847910376 5960506051456 8195695820752 11921012102912 16391391641504 32782783283008 65565566566016 131131133132032