Search a number
-
+
31080696 = 2331093
BaseRepresentation
bin111011010010…
…0000011111000
32011111001200220
41312210003320
530424040241
63030100040
7525116163
oct166440370
964431626
1031080696
11165a9429
12a4aa620
136592b5a
1441b0ada
152ade166
hex1da40f8

31080696 has 32 divisors (see below), whose sum is σ = 78421200. Its totient is φ = 10265184.

The previous prime is 31080689. The next prime is 31080757. The reversal of 31080696 is 69608013.

It is an ABA number since it can be written as A⋅BA, here for A=3, B=218.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285090 + ... + 285198.

Almost surely, 231080696 is an apocalyptic number.

It is an amenable number.

31080696 is an abundant number, since it is smaller than the sum of its proper divisors (47340504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31080696 is an frugal number, since it uses more digits than its factorization.

31080696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 31080696 is about 5575.0063677094. The cubic root of 31080696 is about 314.4104063270.

The spelling of 31080696 in words is "thirty-one million, eighty thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 24 109 218 327 436 654 872 1308 2616 11881 23762 35643 47524 71286 95048 142572 285144 1295029 2590058 3885087 5180116 7770174 10360232 15540348 31080696