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31363068 = 22311534483
BaseRepresentation
bin111011110100…
…0111111111100
32012000102001010
41313220333330
531012104233
63040115220
7530403342
oct167507774
965012033
1031363068
11167815a0
12a605b10
136661539
144245992
152b47b63
hex1de8ffc

31363068 has 48 divisors (see below), whose sum is σ = 81357696. Its totient is φ = 9322560.

The previous prime is 31363061. The next prime is 31363069. The reversal of 31363068 is 86036313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31363061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4755 + ... + 9237.

It is an arithmetic number, because the mean of its divisors is an integer number (1694952).

Almost surely, 231363068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31363068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40678848).

31363068 is an abundant number, since it is smaller than the sum of its proper divisors (49994628).

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

31363068 is a wasteful number, since it uses less digits than its factorization.

31363068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 31363068 is about 5600.2739218720. The cubic root of 31363068 is about 315.3596899046.

The spelling of 31363068 in words is "thirty-one million, three hundred sixty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 53 66 106 132 159 212 318 583 636 1166 1749 2332 3498 4483 6996 8966 13449 17932 26898 49313 53796 98626 147939 197252 237599 295878 475198 591756 712797 950396 1425594 2613589 2851188 5227178 7840767 10454356 15681534 31363068