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290244143 = 770159149
BaseRepresentation
bin10001010011001…
…100011000101111
3202020010221010002
4101103030120233
51043300303033
644444534515
710123014560
oct2123143057
9666127102
10290244143
111399207a2
128125143b
13481933c7
142a794167
151a7333e8
hex114cc62f

290244143 has 8 divisors (see below), whose sum is σ = 332186400. Its totient is φ = 248421600.

The previous prime is 290244113. The next prime is 290244167. The reversal of 290244143 is 341442092.

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

It is not a de Polignac number, because 290244143 - 28 = 290243887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290244113) 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, 24668 + ... + 34481.

It is an arithmetic number, because the mean of its divisors is an integer number (41523300).

Almost surely, 2290244143 is an apocalyptic number.

290244143 is a deficient number, since it is larger than the sum of its proper divisors (41942257).

290244143 is an equidigital number, since it uses as much as digits as its factorization.

290244143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59857.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 290244143 is about 17036.5531431684. The cubic root of 290244143 is about 662.0962907916.

The spelling of 290244143 in words is "two hundred ninety million, two hundred forty-four thousand, one hundred forty-three".

Divisors: 1 7 701 4907 59149 414043 41463449 290244143