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31468020 = 22351730851
BaseRepresentation
bin111100000001…
…0100111110100
32012012202000020
41320002213310
531023434040
63042245140
7531321333
oct170024764
965182006
1031468020
1116843431
12a6567b0
13669a23c
144271d1a
152b68cd0
hex1e029f4

31468020 has 48 divisors (see below), whose sum is σ = 93296448. Its totient is φ = 7897600.

The previous prime is 31468013. The next prime is 31468027. The reversal of 31468020 is 2086413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31468013) and next prime (31468027).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31468027) 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, 14406 + ... + 16445.

It is an arithmetic number, because the mean of its divisors is an integer number (1943676).

Almost surely, 231468020 is an apocalyptic number.

31468020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31468020 is an abundant number, since it is smaller than the sum of its proper divisors (61828428).

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

31468020 is a wasteful number, since it uses less digits than its factorization.

31468020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30880 (or 30878 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 31468020 is about 5609.6363518503. The cubic root of 31468020 is about 315.7110668792.

The spelling of 31468020 in words is "thirty-one million, four hundred sixty-eight thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 30851 61702 92553 123404 154255 185106 308510 370212 462765 524467 617020 925530 1048934 1573401 1851060 2097868 2622335 3146802 5244670 6293604 7867005 10489340 15734010 31468020