Search a number
-
+
31340814 = 2331168499
BaseRepresentation
bin111011110001…
…1100100001110
32011222021111220
41313203210032
531010401224
63035424210
7530251431
oct167434416
964867456
1031340814
11167668aa
12a5b5066
13665437b
14423b818
152b41279
hex1de390e

31340814 has 16 divisors (see below), whose sum is σ = 64704000. Its totient is φ = 10109880.

The previous prime is 31340767. The next prime is 31340831. The reversal of 31340814 is 41804313.

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, 84064 + ... + 84435.

It is an arithmetic number, because the mean of its divisors is an integer number (4044000).

Almost surely, 231340814 is an apocalyptic number.

31340814 is an abundant number, since it is smaller than the sum of its proper divisors (33363186).

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

31340814 is a wasteful number, since it uses less digits than its factorization.

31340814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168535.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 31340814 is about 5598.2867021974. The cubic root of 31340814 is about 315.2850833101.

The spelling of 31340814 in words is "thirty-one million, three hundred forty thousand, eight hundred fourteen".

Divisors: 1 2 3 6 31 62 93 186 168499 336998 505497 1010994 5223469 10446938 15670407 31340814