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290620479 = 3234211891
BaseRepresentation
bin10001010100101…
…000010000111111
3202020212001100110
4101110220100333
51043344323404
644501001103
710126143012
oct2124502077
9666761313
10290620479
1113a058516
12813b3193
13482957a6
142a851379
151a7a9b89
hex1152843f

290620479 has 8 divisors (see below), whose sum is σ = 404341632. Its totient is φ = 185323160.

The previous prime is 290620469. The next prime is 290620541. The reversal of 290620479 is 974026092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 290620479 - 211 = 290618431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290620469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2105877 + ... + 2106014.

It is an arithmetic number, because the mean of its divisors is an integer number (50542704).

Almost surely, 2290620479 is an apocalyptic number.

290620479 is a deficient number, since it is larger than the sum of its proper divisors (113721153).

290620479 is a wasteful number, since it uses less digits than its factorization.

290620479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211917.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 290620479 is about 17047.5945223952. The cubic root of 290620479 is about 662.3823293562.

The spelling of 290620479 in words is "two hundred ninety million, six hundred twenty thousand, four hundred seventy-nine".

Divisors: 1 3 23 69 4211891 12635673 96873493 290620479