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31056194 = 2138913421
BaseRepresentation
bin111011001111…
…0000101000010
32011102211002102
41312132011002
530422244234
63025350402
7524654561
oct166360502
964384072
1031056194
1116591a84
12a498402
136584960
1441a5bd8
152ad6c7e
hex1d9e142

31056194 has 16 divisors (see below), whose sum is σ = 50735160. Its totient is φ = 14171520.

The previous prime is 31056169. The next prime is 31056197. The reversal of 31056194 is 49165013.

It can be written as a sum of positive squares in 4 ways, for example, as 24373969 + 6682225 = 4937^2 + 2585^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31056197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4397 + ... + 9024.

Almost surely, 231056194 is an apocalyptic number.

31056194 is a deficient number, since it is larger than the sum of its proper divisors (19678966).

31056194 is a wasteful number, since it uses less digits than its factorization.

31056194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 31056194 is about 5572.8084481705. The cubic root of 31056194 is about 314.3277643658.

The spelling of 31056194 in words is "thirty-one million, fifty-six thousand, one hundred ninety-four".

Divisors: 1 2 13 26 89 178 1157 2314 13421 26842 174473 348946 1194469 2388938 15528097 31056194