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290135626 = 21113187983
BaseRepresentation
bin10001010010110…
…001111001001010
3202012221102020221
4101102301321022
51043233320001
644442340254
710122053314
oct2122617112
9665842227
10290135626
11139857210
12811ba68a
1348155bb1
142a7667b4
151a7111a1
hex114b1e4a

290135626 has 8 divisors (see below), whose sum is σ = 474767424. Its totient is φ = 131879820.

The previous prime is 290135609. The next prime is 290135641. The reversal of 290135626 is 626531092.

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

It is a super-3 number, since 3×2901356263 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 290135591 and 290135600.

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, 6593970 + ... + 6594013.

It is an arithmetic number, because the mean of its divisors is an integer number (59345928).

Almost surely, 2290135626 is an apocalyptic number.

290135626 is a deficient number, since it is larger than the sum of its proper divisors (184631798).

290135626 is a wasteful number, since it uses less digits than its factorization.

290135626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13187996.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 290135626 is about 17033.3680169249. The cubic root of 290135626 is about 662.0137652569.

The spelling of 290135626 in words is "two hundred ninety million, one hundred thirty-five thousand, six hundred twenty-six".

Divisors: 1 2 11 22 13187983 26375966 145067813 290135626