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31040334101 = 7103124934469
BaseRepresentation
bin11100111010001001…
…011110100100010101
32222010020212100110202
4130322021132210111
51002032311142401
622132034030245
72146131325610
oct347211364425
988106770422
1031040334101
1112189506487
126023418385
132c08a84bca
141706695177
15c1a12606b
hex73a25e915

31040334101 has 16 divisors (see below), whose sum is σ = 35848800000. Its totient is φ = 26325831168.

The previous prime is 31040334077. The next prime is 31040334109. The reversal of 31040334101 is 10143304013.

It is not a de Polignac number, because 31040334101 - 218 = 31040071957 is a prime.

It is a super-2 number, since 2×310403341012 (a number of 22 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 (31040334109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883295 + ... + 917763.

It is an arithmetic number, because the mean of its divisors is an integer number (2240550000).

Almost surely, 231040334101 is an apocalyptic number.

It is an amenable number.

31040334101 is a deficient number, since it is larger than the sum of its proper divisors (4808465899).

31040334101 is a wasteful number, since it uses less digits than its factorization.

31040334101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35828.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31040334101 its reverse (10143304013), we get a palindrome (41183638114).

The spelling of 31040334101 in words is "thirty-one billion, forty million, three hundred thirty-four thousand, one hundred one".

Divisors: 1 7 103 721 1249 8743 34469 128647 241283 900529 3550307 24852149 43051781 301362467 4434333443 31040334101