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13272484981 = 76179509773
BaseRepresentation
bin11000101110001101…
…00000110001110101
31021020222112002120211
430113012200301311
5204140224004411
610033003225421
7646622155330
oct142706406165
937228462524
1013272484981
1156a0a76458
1226a4b18271
131336987912
148dca19617
1552a328221
hex3171a0c75

13272484981 has 32 divisors (see below), whose sum is σ = 15663283200. Its totient is φ = 11012302080.

The previous prime is 13272484969. The next prime is 13272485003. The reversal of 13272484981 is 18948427231.

It is a cyclic number.

It is not a de Polignac number, because 13272484981 - 29 = 13272484469 is a prime.

It is a super-2 number, since 2×132724849812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13272484921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17169711 + ... + 17170483.

It is an arithmetic number, because the mean of its divisors is an integer number (489477600).

Almost surely, 213272484981 is an apocalyptic number.

It is an amenable number.

13272484981 is a deficient number, since it is larger than the sum of its proper divisors (2390798219).

13272484981 is an equidigital number, since it uses as much as digits as its factorization.

13272484981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429.

The product of its digits is 774144, while the sum is 49.

The spelling of 13272484981 in words is "thirteen billion, two hundred seventy-two million, four hundred eighty-four thousand, nine hundred eighty-one".

Divisors: 1 7 61 79 427 509 553 773 3563 4819 5411 31049 33733 40211 47153 61067 217343 281477 330071 393457 427469 2452871 2754199 3725087 17170097 24000877 26075609 31083103 168006139 217581721 1896069283 13272484981