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290017492 = 22137529229
BaseRepresentation
bin10001010010010…
…101000011010100
3202012201102012121
4101102111003110
51043221024432
644440025324
710121052022
oct2122250324
9665642177
10290017492
11139786486
1281162244
13481141ab
142a735712
151a6db197
hex114950d4

290017492 has 12 divisors (see below), whose sum is σ = 511236180. Its totient is φ = 143950016.

The previous prime is 290017489. The next prime is 290017513. The reversal of 290017492 is 294710092.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 188128656 + 101888836 = 13716^2 + 10094^2 .

It is a super-2 number, since 2×2900174922 = 168220291331940128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264067 + ... + 265162.

It is an arithmetic number, because the mean of its divisors is an integer number (42603015).

Almost surely, 2290017492 is an apocalyptic number.

It is an amenable number.

290017492 is a deficient number, since it is larger than the sum of its proper divisors (221218688).

290017492 is a wasteful number, since it uses less digits than its factorization.

290017492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529370 (or 529368 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 290017492 is about 17029.8999409861. The cubic root of 290017492 is about 661.9239027421.

The spelling of 290017492 in words is "two hundred ninety million, seventeen thousand, four hundred ninety-two".

Divisors: 1 2 4 137 274 548 529229 1058458 2116916 72504373 145008746 290017492