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290943932 = 22110965587
BaseRepresentation
bin10001010101110…
…111001110111100
3202021110111001012
4101111313032330
51043440201212
644511534352
710131661016
oct2125671674
9667414035
10290943932
1113a259534
128152a3b8
1348379a96
142a8d71b6
151a820922
hex115773bc

290943932 has 12 divisors (see below), whose sum is σ = 509618760. Its totient is φ = 145338576.

The previous prime is 290943929. The next prime is 290943943. The reversal of 290943932 is 239349092.

It is a self number, because there is not a number n which added to its sum of digits gives 290943932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28358 + ... + 37229.

It is an arithmetic number, because the mean of its divisors is an integer number (42468230).

Almost surely, 2290943932 is an apocalyptic number.

It is an amenable number.

290943932 is a deficient number, since it is larger than the sum of its proper divisors (218674828).

290943932 is a wasteful number, since it uses less digits than its factorization.

290943932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66700 (or 66698 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 290943932 is about 17057.0786478811. The cubic root of 290943932 is about 662.6279763213.

The spelling of 290943932 in words is "two hundred ninety million, nine hundred forty-three thousand, nine hundred thirty-two".

Divisors: 1 2 4 1109 2218 4436 65587 131174 262348 72735983 145471966 290943932