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31267068 = 2237735099
BaseRepresentation
bin111011101000…
…1100011111100
32011211112100120
41313101203330
531001021233
63034054540
7526523430
oct167214374
964745316
1031267068
1116716458
12a57a450
136629931
14421c9c0
152b294b3
hex1dd18fc

31267068 has 48 divisors (see below), whose sum is σ = 84537600. Its totient is φ = 8809344.

The previous prime is 31267039. The next prime is 31267069. The reversal of 31267068 is 86076213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31267069) 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, 3583 + ... + 8681.

It is an arithmetic number, because the mean of its divisors is an integer number (1761200).

Almost surely, 231267068 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 31267068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42268800).

31267068 is an abundant number, since it is smaller than the sum of its proper divisors (53270532).

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

31267068 is a wasteful number, since it uses less digits than its factorization.

31267068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186 (or 5184 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 31267068 is about 5591.6963436868. The cubic root of 31267068 is about 315.0375969234.

The spelling of 31267068 in words is "thirty-one million, two hundred sixty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 73 84 146 219 292 438 511 876 1022 1533 2044 3066 5099 6132 10198 15297 20396 30594 35693 61188 71386 107079 142772 214158 372227 428316 744454 1116681 1488908 2233362 2605589 4466724 5211178 7816767 10422356 15633534 31267068