Search a number
-
+
31000294 = 2131796661
BaseRepresentation
bin111011001000…
…0011011100110
32011022222102001
41312100123212
530414002134
63024235514
7524332603
oct166203346
964288361
1031000294
1116553a86
12a46bb9a
136565390
14418d6aa
152ac5414
hex1d906e6

31000294 has 16 divisors (see below), whose sum is σ = 50364720. Its totient is φ = 14225760.

The previous prime is 31000289. The next prime is 31000301. The reversal of 31000294 is 49200013.

It is a super-2 number, since 2×310002942 = 1922036456172872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (3147795).

Almost surely, 231000294 is an apocalyptic number.

31000294 is a deficient number, since it is larger than the sum of its proper divisors (19364426).

31000294 is a wasteful number, since it uses less digits than its factorization.

31000294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 31000294 is about 5567.7907647468. The cubic root of 31000294 is about 314.1390583176.

The spelling of 31000294 in words is "thirty-one million, two hundred ninety-four", and thus it is an aban number.

Divisors: 1 2 13 26 179 358 2327 4654 6661 13322 86593 173186 1192319 2384638 15500147 31000294