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290047290 = 23513743711
BaseRepresentation
bin10001010010011…
…100010100111010
3202012202221002020
4101102130110322
51043223003130
644440415310
710121234631
oct2122342472
9665687066
10290047290
111397a6905
1281177536
1348124920
142a742518
151a6e4e10
hex1149c53a

290047290 has 32 divisors (see below), whose sum is σ = 749661696. Its totient is φ = 71396160.

The previous prime is 290047223. The next prime is 290047291. The reversal of 290047290 is 92740092.

It is not an unprimeable number, because it can be changed into a prime (290047291) 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 15 ways as a sum of consecutive naturals, for example, 371466 + ... + 372245.

It is an arithmetic number, because the mean of its divisors is an integer number (23426928).

Almost surely, 2290047290 is an apocalyptic number.

290047290 is an abundant number, since it is smaller than the sum of its proper divisors (459614406).

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

290047290 is a wasteful number, since it uses less digits than its factorization.

290047290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743734.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 290047290 is about 17030.7747915355. The cubic root of 290047290 is about 661.9465718724.

The spelling of 290047290 in words is "two hundred ninety million, forty-seven thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 743711 1487422 2231133 3718555 4462266 7437110 9668243 11155665 19336486 22311330 29004729 48341215 58009458 96682430 145023645 290047290