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290835106 = 21131286881
BaseRepresentation
bin10001010101011…
…100101010100010
3202021020221202121
4101111130222202
51043423210411
644505334454
710131025522
oct2125345242
9667227677
10290835106
1113a1947a1
128149742a
134833c3a3
142a8a9682
151a7ed571
hex1155caa2

290835106 has 8 divisors (see below), whose sum is σ = 440113644. Its totient is φ = 144130560.

The previous prime is 290835091. The next prime is 290835163. The reversal of 290835106 is 601538092.

It can be written as a sum of positive squares in 2 ways, for example, as 203319081 + 87516025 = 14259^2 + 9355^2 .

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

It is an unprimeable number.

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, 643215 + ... + 643666.

Almost surely, 2290835106 is an apocalyptic number.

290835106 is a deficient number, since it is larger than the sum of its proper divisors (149278538).

290835106 is a wasteful number, since it uses less digits than its factorization.

290835106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286996.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 290835106 is about 17053.8882956351. Note that the first 3 decimals coincide. The cubic root of 290835106 is about 662.5453485512.

It can be divided in two parts, 290 and 835106, that added together give a square (835396 = 9142).

The spelling of 290835106 in words is "two hundred ninety million, eight hundred thirty-five thousand, one hundred six".

Divisors: 1 2 113 226 1286881 2573762 145417553 290835106