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31013034 = 2313974099
BaseRepresentation
bin111011001001…
…1100010101010
32011100121212220
41312103202222
530414404114
63024414510
7524415003
oct166234252
964317786
1031013034
1116562608
12a477436
13656b110
1441941aa
152ac90a9
hex1d938aa

31013034 has 32 divisors (see below), whose sum is σ = 67502400. Its totient is φ = 9441792.

The previous prime is 31013023. The next prime is 31013041. The reversal of 31013034 is 43031013.

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 15 ways as a sum of consecutive naturals, for example, 5517 + ... + 9615.

It is an arithmetic number, because the mean of its divisors is an integer number (2109450).

Almost surely, 231013034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31013034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33751200).

31013034 is an abundant number, since it is smaller than the sum of its proper divisors (36489366).

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

31013034 is a wasteful number, since it uses less digits than its factorization.

31013034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 31013034 is about 5568.9347275758. The cubic root of 31013034 is about 314.1820856890.

Adding to 31013034 its reverse (43031013), we get a palindrome (74044047).

The spelling of 31013034 in words is "thirty-one million, thirteen thousand, thirty-four".

Divisors: 1 2 3 6 13 26 39 78 97 194 291 582 1261 2522 3783 4099 7566 8198 12297 24594 53287 106574 159861 319722 397603 795206 1192809 2385618 5168839 10337678 15506517 31013034