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31270081663127 = 1072231607815501
BaseRepresentation
bin1110001110000101000100…
…00111000001000010010111
311002201101112202102020002102
413013002202013001002113
513044312111401210002
6150301135513032315
76405121526402636
oct707024207010227
9132641482366072
1031270081663127
119a666269869aa
1236104270b569b
13145a9aa064978
147a16a12a751d
15393617356a02
hex1c70a21c1097

31270081663127 has 16 divisors (see below), whose sum is σ = 31723628009472. Its totient is φ = 30819695676000.

The previous prime is 31270081663069. The next prime is 31270081663153. The reversal of 31270081663127 is 72136618007213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31270081663127 - 228 = 31269813227671 is a prime.

It is a super-2 number, since 2×312700816631272 (a number of 28 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 (31270081663427) 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, 37936877 + ... + 38752377.

It is an arithmetic number, because the mean of its divisors is an integer number (1982726750592).

Almost surely, 231270081663127 is an apocalyptic number.

31270081663127 is a deficient number, since it is larger than the sum of its proper divisors (453546346345).

31270081663127 is a wasteful number, since it uses less digits than its factorization.

31270081663127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817438.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 31270081663127 in words is "thirty-one trillion, two hundred seventy billion, eighty-one million, six hundred sixty-three thousand, one hundred twenty-seven".

Divisors: 1 107 223 1607 23861 171949 358361 815501 38344627 87258607 181856723 1310510107 19458669361 140224581449 292243753861 31270081663127