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31014045 = 325689201
BaseRepresentation
bin111011001001…
…1110010011101
32011100200021100
41312103302131
530414422140
63024423313
7524420646
oct166236235
964320240
1031014045
1116563347
12a477b39
13656b70a
1441946cd
152ac9530
hex1d93c9d

31014045 has 12 divisors (see below), whose sum is σ = 53757756. Its totient is φ = 16540800.

The previous prime is 31014019. The next prime is 31014059. The reversal of 31014045 is 54041013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14220441 + 16793604 = 3771^2 + 4098^2 .

It is not a de Polignac number, because 31014045 - 25 = 31014013 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344556 + ... + 344645.

It is an arithmetic number, because the mean of its divisors is an integer number (4479813).

Almost surely, 231014045 is an apocalyptic number.

It is an amenable number.

31014045 is a deficient number, since it is larger than the sum of its proper divisors (22743711).

31014045 is a wasteful number, since it uses less digits than its factorization.

31014045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689212 (or 689209 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 31014045 is about 5569.0254982358. The cubic root of 31014045 is about 314.1854996797.

Adding to 31014045 its reverse (54041013), we get a palindrome (85055058).

The spelling of 31014045 in words is "thirty-one million, fourteen thousand, forty-five".

Divisors: 1 3 5 9 15 45 689201 2067603 3446005 6202809 10338015 31014045