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930428972 = 2211171243889
BaseRepresentation
bin110111011101010…
…011100000101100
32101211202200121022
4313131103200230
53401142211342
6232154153312
732025341624
oct6735234054
92354680538
10930428972
11438226070
1221b722838
1311a9bb9b5
148b7db884
1556a3c9d2
hex3775382c

930428972 has 24 divisors (see below), whose sum is σ = 1880761680. Its totient is φ = 398044160.

The previous prime is 930428971. The next prime is 930428981. The reversal of 930428972 is 279824039.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (930428971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621197 + ... + 622692.

It is an arithmetic number, because the mean of its divisors is an integer number (78365070).

Almost surely, 2930428972 is an apocalyptic number.

It is an amenable number.

930428972 is an abundant number, since it is smaller than the sum of its proper divisors (950332708).

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

930428972 is a wasteful number, since it uses less digits than its factorization.

930428972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243921 (or 1243919 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 930428972 is about 30502.9338261093. The cubic root of 930428972 is about 976.2500632991.

The spelling of 930428972 in words is "nine hundred thirty million, four hundred twenty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 1243889 2487778 4975556 13682779 21146113 27365558 42292226 54731116 84584452 232607243 465214486 930428972