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290260384 = 259070637
BaseRepresentation
bin10001010011010…
…000010110100000
3202020011202101121
4101103100112200
51043301313014
644445142024
710123113121
oct2123202640
9666152347
10290260384
11139931a17
128125a914
134819a90b
142a79a048
151a738124
hex114d05a0

290260384 has 12 divisors (see below), whose sum is σ = 571450194. Its totient is φ = 145130176.

The previous prime is 290260381. The next prime is 290260403. The reversal of 290260384 is 483062092.

290260384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 278890000 + 11370384 = 16700^2 + 3372^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (290260381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4535287 + ... + 4535350.

Almost surely, 2290260384 is an apocalyptic number.

It is an amenable number.

290260384 is a deficient number, since it is larger than the sum of its proper divisors (281189810).

290260384 is an equidigital number, since it uses as much as digits as its factorization.

290260384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9070647 (or 9070639 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 290260384 is about 17037.0297880822. The cubic root of 290260384 is about 662.1086400564.

The spelling of 290260384 in words is "two hundred ninety million, two hundred sixty thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 32 9070637 18141274 36282548 72565096 145130192 290260384