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290520798 = 23203923747
BaseRepresentation
bin10001010100001…
…111111011011110
3202020122222121120
4101110033323132
51043333131143
644454511410
710125246261
oct2124177336
9666588546
10290520798
11139a9a637
1281365566
134825c2c9
142a826cd8
151a78a383
hex1150fede

290520798 has 16 divisors (see below), whose sum is σ = 581351040. Its totient is φ = 96788696.

The previous prime is 290520761. The next prime is 290520821. The reversal of 290520798 is 897025092.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (36334440).

Almost surely, 2290520798 is an apocalyptic number.

290520798 is an abundant number, since it is smaller than the sum of its proper divisors (290830242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290520798 is a wasteful number, since it uses less digits than its factorization.

290520798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25791.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 290520798 is about 17044.6706627028. The cubic root of 290520798 is about 662.3065897024.

The spelling of 290520798 in words is "two hundred ninety million, five hundred twenty thousand, seven hundred ninety-eight".

Divisors: 1 2 3 6 2039 4078 6117 12234 23747 47494 71241 142482 48420133 96840266 145260399 290520798