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290968980 = 223512973739
BaseRepresentation
bin10001010101111…
…101010110010100
3202021111202101220
4101111331112110
51043442001410
644512250340
710132124031
oct2125752624
9667452356
10290968980
1113a276335
12815409b0
13483882c3
142a902388
151a828070
hex1157d594

290968980 has 48 divisors (see below), whose sum is σ = 815559360. Its totient is φ = 77511168.

The previous prime is 290968973. The next prime is 290969009. The reversal of 290968980 is 89869092.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75951 + ... + 79689.

It is an arithmetic number, because the mean of its divisors is an integer number (16990820).

Almost surely, 2290968980 is an apocalyptic number.

290968980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290968980 is an abundant number, since it is smaller than the sum of its proper divisors (524590380).

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

290968980 is a wasteful number, since it uses less digits than its factorization.

290968980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048 (or 5046 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 290968980 is about 17057.8128726985. The cubic root of 290968980 is about 662.6469914733.

The spelling of 290968980 in words is "two hundred ninety million, nine hundred sixty-eight thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1297 2594 3739 3891 5188 6485 7478 7782 11217 12970 14956 15564 18695 19455 22434 25940 37390 38910 44868 56085 74780 77820 112170 224340 4849483 9698966 14548449 19397932 24247415 29096898 48494830 58193796 72742245 96989660 145484490 290968980