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27112631 = 7213311373
BaseRepresentation
bin110011101101…
…1010010110111
31220000110112112
41213123102313
523420101011
62405041235
7446311400
oct147332267
956013475
1027112631
1114339137
1290b621b
1358039a0
14385a9a7
1525a858b
hex19db4b7

27112631 has 24 divisors (see below), whose sum is σ = 35086464. Its totient is φ = 20744640.

The previous prime is 27112621. The next prime is 27112643. The reversal of 27112631 is 13621172.

It is a de Polignac number, because none of the positive numbers 2k-27112631 is a prime.

It is a super-2 number, since 2×271126312 = 1470189519484322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27112597 and 27112606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27112621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19061 + ... + 20433.

It is an arithmetic number, because the mean of its divisors is an integer number (1461936).

Almost surely, 227112631 is an apocalyptic number.

27112631 is a deficient number, since it is larger than the sum of its proper divisors (7973833).

27112631 is a wasteful number, since it uses less digits than its factorization.

27112631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431 (or 1424 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 27112631 is about 5206.9790665990. The cubic root of 27112631 is about 300.4165731402.

The spelling of 27112631 in words is "twenty-seven million, one hundred twelve thousand, six hundred thirty-one".

Divisors: 1 7 13 31 49 91 217 403 637 1373 1519 2821 9611 17849 19747 42563 67277 124943 297941 553319 874601 2085587 3873233 27112631