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290304042 = 23738318047
BaseRepresentation
bin10001010011011…
…011000000101010
3202020020222021120
4101103123000222
51043304212132
644450120110
710123354320
oct2123330052
9666228246
10290304042
111399617a6
1281280036
13481b4752
142a7abd10
151a74602c
hex114db02a

290304042 has 32 divisors (see below), whose sum is σ = 665321472. Its totient is φ = 82722864.

The previous prime is 290304041. The next prime is 290304073. The reversal of 290304042 is 240403092.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (290304041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7063 + ... + 25109.

It is an arithmetic number, because the mean of its divisors is an integer number (20791296).

Almost surely, 2290304042 is an apocalyptic number.

290304042 is an abundant number, since it is smaller than the sum of its proper divisors (375017430).

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

290304042 is a wasteful number, since it uses less digits than its factorization.

290304042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18442.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 290304042 is about 17038.3110078435. The cubic root of 290304042 is about 662.1418342635.

The spelling of 290304042 in words is "two hundred ninety million, three hundred four thousand, forty-two".

Divisors: 1 2 3 6 7 14 21 42 383 766 1149 2298 2681 5362 8043 16086 18047 36094 54141 108282 126329 252658 378987 757974 6912001 13824002 20736003 41472006 48384007 96768014 145152021 290304042