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290466613 = 3711369473
BaseRepresentation
bin10001010100000…
…010101100110101
3202020120020021201
4101110002230311
51043324412423
644453412501
710124632303
oct2124025465
9666506251
10290466613
11139a62958
128133a131
1348240748
142a811273
151a7792ad
hex11502b35

290466613 has 8 divisors (see below), whose sum is σ = 300961368. Its totient is φ = 280111104.

The previous prime is 290466611. The next prime is 290466619. The reversal of 290466613 is 316664092.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30547729 + 259918884 = 5527^2 + 16122^2 .

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 290466613 - 21 = 290466611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290466611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30556 + ... + 38917.

It is an arithmetic number, because the mean of its divisors is an integer number (37620171).

Almost surely, 2290466613 is an apocalyptic number.

It is an amenable number.

290466613 is a deficient number, since it is larger than the sum of its proper divisors (10494755).

290466613 is a wasteful number, since it uses less digits than its factorization.

290466613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69623.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 290466613 is about 17043.0810888172. The cubic root of 290466613 is about 662.2654115675.

The spelling of 290466613 in words is "two hundred ninety million, four hundred sixty-six thousand, six hundred thirteen".

Divisors: 1 37 113 4181 69473 2570501 7850449 290466613