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290971068 = 223231054243
BaseRepresentation
bin10001010101111…
…101110110111100
3202021111212021020
4101111331312330
51043442033233
644512304140
710132133103
oct2125756674
9667455236
10290971068
1113a277963
1281542050
134838923b
142a90303a
151a8289b3
hex1157ddbc

290971068 has 24 divisors (see below), whose sum is σ = 708451968. Its totient is φ = 92773296.

The previous prime is 290971039. The next prime is 290971127. The reversal of 290971068 is 860179092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526846 + ... + 527397.

It is an arithmetic number, because the mean of its divisors is an integer number (29518832).

Almost surely, 2290971068 is an apocalyptic number.

It is an amenable number.

290971068 is an abundant number, since it is smaller than the sum of its proper divisors (417480900).

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

290971068 is a wasteful number, since it uses less digits than its factorization.

290971068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054273 (or 1054271 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 290971068 is about 17057.8740762148. The cubic root of 290971068 is about 662.6485765261.

The spelling of 290971068 in words is "two hundred ninety million, nine hundred seventy-one thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 1054243 2108486 3162729 4216972 6325458 12650916 24247589 48495178 72742767 96990356 145485534 290971068