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290253466 = 2271535523
BaseRepresentation
bin10001010011001…
…110101010011010
3202020011101220101
4101103032222122
51043301102331
644445050014
710123054006
oct2123165232
9666141811
10290253466
111399277a8
128125690a
1348197719
142a797706
151a736061
hex114cea9a

290253466 has 8 divisors (see below), whose sum is σ = 436987584. Its totient is φ = 144590940.

The previous prime is 290253463. The next prime is 290253479. The reversal of 290253466 is 664352092.

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

It is not an unprimeable number, because it can be changed into a prime (290253463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267220 + ... + 268303.

It is an arithmetic number, because the mean of its divisors is an integer number (54623448).

Almost surely, 2290253466 is an apocalyptic number.

290253466 is a deficient number, since it is larger than the sum of its proper divisors (146734118).

290253466 is a wasteful number, since it uses less digits than its factorization.

290253466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535796.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 290253466 is about 17036.8267585252. The cubic root of 290253466 is about 662.1033798323.

The spelling of 290253466 in words is "two hundred ninety million, two hundred fifty-three thousand, four hundred sixty-six".

Divisors: 1 2 271 542 535523 1071046 145126733 290253466