Search a number
-
+
31956134 = 272326083
BaseRepresentation
bin111100111100…
…1110010100110
32020010112120112
41321321302212
531140044014
63100533022
7535423400
oct171716246
966115515
1031956134
1117047131
12a851172
13680b472
14435bb70
152c1373e
hex1e79ca6

31956134 has 12 divisors (see below), whose sum is σ = 55760364. Its totient is φ = 13695444.

The previous prime is 31956109. The next prime is 31956137. The reversal of 31956134 is 43165913.

It is a self number, because there is not a number n which added to its sum of digits gives 31956134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31956137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162944 + ... + 163139.

It is an arithmetic number, because the mean of its divisors is an integer number (4646697).

Almost surely, 231956134 is an apocalyptic number.

31956134 is a deficient number, since it is larger than the sum of its proper divisors (23804230).

31956134 is a wasteful number, since it uses less digits than its factorization.

31956134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326099 (or 326092 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 31956134 is about 5652.9756765795. The cubic root of 31956134 is about 317.3350754422.

The spelling of 31956134 in words is "thirty-one million, nine hundred fifty-six thousand, one hundred thirty-four".

Divisors: 1 2 7 14 49 98 326083 652166 2282581 4565162 15978067 31956134