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31135444453113 = 37211213134650823
BaseRepresentation
bin1110001010001010010010…
…00110110100011011111001
311002020112000122202022012120
413011011021012310123321
513040110342234444423
6150115231542231453
76362314224114600
oct705051106643371
9132215018668176
1031135444453113
119a14516770300
1235aa311425589
13144b0a15451b0
14798d6bdb6a37
1538ed8734eee3
hex1c51491b46f9

31135444453113 has 72 divisors (see below), whose sum is σ = 57164122217664. Its totient is φ = 14930083143360.

The previous prime is 31135444453097. The next prime is 31135444453147.

31135444453113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31135444453113 - 24 = 31135444453097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31135444455113) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67094181 + ... + 67556642.

It is an arithmetic number, because the mean of its divisors is an integer number (793946141912).

Almost surely, 231135444453113 is an apocalyptic number.

31135444453113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31135444453113 is a deficient number, since it is larger than the sum of its proper divisors (26028677764551).

31135444453113 is a wasteful number, since it uses less digits than its factorization.

31135444453113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134650875 (or 134650857 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

It can be divided in two parts, 3113544 and 4453113, that added together give a palindrome (7566657).

The spelling of 31135444453113 in words is "thirty-one trillion, one hundred thirty-five billion, four hundred forty-four million, four hundred fifty-three thousand, one hundred thirteen".

Divisors: 1 3 7 11 13 21 33 39 49 77 91 121 143 147 231 273 363 429 539 637 847 1001 1573 1617 1911 2541 3003 4719 5929 7007 11011 17787 21021 33033 77077 231231 134650823 403952469 942555761 1481159053 1750460699 2827667283 4443477159 5251382097 6597890327 10368113371 12253224893 16292749583 19255067689 19793670981 31104340113 36759674679 48878248749 57765203067 72576793597 85772574251 114049247081 134785473823 211805744579 217730380791 257317722753 342147741243 404356421469 635417233737 798344729567 943498316761 1482640212053 2395034188701 2830494950283 4447920636159 10378481484371 31135444453113