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290816474 = 21311185249
BaseRepresentation
bin10001010101011…
…000000111011010
3202021020000012112
4101111120013122
51043422111344
644505112322
710130620304
oct2125300732
9667200175
10290816474
1113a1817a3
12814886a2
1348333a70
142a8a2974
151a7e7c9e
hex115581da

290816474 has 8 divisors (see below), whose sum is σ = 469780500. Its totient is φ = 134222976.

The previous prime is 290816473. The next prime is 290816507. The reversal of 290816474 is 474618092.

It can be written as a sum of positive squares in 2 ways, for example, as 220374025 + 70442449 = 14845^2 + 8393^2 .

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 (290816473) 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 3 ways as a sum of consecutive naturals, for example, 5592599 + ... + 5592650.

Almost surely, 2290816474 is an apocalyptic number.

290816474 is a deficient number, since it is larger than the sum of its proper divisors (178964026).

290816474 is a wasteful number, since it uses less digits than its factorization.

290816474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11185264.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 290816474 is about 17053.3420185018. The cubic root of 290816474 is about 662.5311998597.

The spelling of 290816474 in words is "two hundred ninety million, eight hundred sixteen thousand, four hundred seventy-four".

Divisors: 1 2 13 26 11185249 22370498 145408237 290816474