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290312896 = 264536139
BaseRepresentation
bin10001010011011…
…101001011000000
3202020021102102111
4101103131023000
51043310003041
644450225104
710123422166
oct2123351300
9666242374
10290312896
11139968415
1281285194
13481b87a3
142a7b1236
151a748981
hex114dd2c0

290312896 has 14 divisors (see below), whose sum is σ = 576089780. Its totient is φ = 145156416.

The previous prime is 290312873. The next prime is 290312917. The reversal of 290312896 is 698213092.

It is a happy number.

290312896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268006 + ... + 2268133.

It is an arithmetic number, because the mean of its divisors is an integer number (41149270).

Almost surely, 2290312896 is an apocalyptic number.

It is an amenable number.

290312896 is a deficient number, since it is larger than the sum of its proper divisors (285776884).

290312896 is an equidigital number, since it uses as much as digits as its factorization.

290312896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536151 (or 4536141 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 290312896 is about 17038.5708320857. The cubic root of 290312896 is about 662.1485657626.

The spelling of 290312896 in words is "two hundred ninety million, three hundred twelve thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 32 64 4536139 9072278 18144556 36289112 72578224 145156448 290312896