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290485461 = 3713832641
BaseRepresentation
bin10001010100000…
…111010011010101
3202020121012010210
4101110013103111
51043331013321
644454040033
710125041250
oct2124072325
9666535123
10290485461
11139a76032
1281349019
13482491b6
142a818097
151a77eb76
hex115074d5

290485461 has 8 divisors (see below), whose sum is σ = 442644544. Its totient is φ = 165991680.

The previous prime is 290485417. The next prime is 290485487. The reversal of 290485461 is 164584092.

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

It is not a de Polignac number, because 290485461 - 210 = 290484437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290480461) 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, 6916300 + ... + 6916341.

It is an arithmetic number, because the mean of its divisors is an integer number (55330568).

Almost surely, 2290485461 is an apocalyptic number.

290485461 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

290485461 is a deficient number, since it is larger than the sum of its proper divisors (152159083).

290485461 is a wasteful number, since it uses less digits than its factorization.

290485461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832651.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 290485461 is about 17043.6340315087. The cubic root of 290485461 is about 662.2797357708.

The spelling of 290485461 in words is "two hundred ninety million, four hundred eighty-five thousand, four hundred sixty-one".

Divisors: 1 3 7 21 13832641 41497923 96828487 290485461