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290146942 = 28910116139
BaseRepresentation
bin10001010010110…
…100101001111110
3202012221222210001
4101102310221332
51043234200232
644442504514
710122131311
oct2122645176
9665858701
10290146942
11139864768
128120513a
134815b0a7
142a76a978
151a7146e7
hex114b4a7e

290146942 has 16 divisors (see below), whose sum is σ = 444495600. Its totient is φ = 142014400.

The previous prime is 290146937. The next prime is 290146979. The reversal of 290146942 is 249641092.

It is a happy number.

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, 9909 + ... + 26047.

It is an arithmetic number, because the mean of its divisors is an integer number (27780975).

Almost surely, 2290146942 is an apocalyptic number.

290146942 is a deficient number, since it is larger than the sum of its proper divisors (154348658).

290146942 is a wasteful number, since it uses less digits than its factorization.

290146942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16331.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 290146942 is about 17033.7001852211. The cubic root of 290146942 is about 662.0223718644.

The spelling of 290146942 in words is "two hundred ninety million, one hundred forty-six thousand, nine hundred forty-two".

Divisors: 1 2 89 101 178 202 8989 16139 17978 32278 1436371 1630039 2872742 3260078 145073471 290146942