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290249025785 = 51719179720759
BaseRepresentation
bin1000011100101000011…
…00001010100011111001
31000202011221202012202222
410032110030022203321
514223412222311120
6341201043533425
726653433004155
oct4162414124371
91022157665688
10290249025785
11102104010024
124830398a275
13214a7902594
14100960c4065
15783b5e1525
hex439430a8f9

290249025785 has 16 divisors (see below), whose sum is σ = 388196841600. Its totient is φ = 207038313216.

The previous prime is 290249025763. The next prime is 290249025793. The reversal of 290249025785 is 587520942092.

It is a cyclic number.

It is not a de Polignac number, because 290249025785 - 26 = 290249025721 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89858765 + ... + 89861994.

It is an arithmetic number, because the mean of its divisors is an integer number (24262302600).

Almost surely, 2290249025785 is an apocalyptic number.

It is an amenable number.

290249025785 is a deficient number, since it is larger than the sum of its proper divisors (97947815815).

290249025785 is a wasteful number, since it uses less digits than its factorization.

290249025785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179720800.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 290249025785 in words is "two hundred ninety billion, two hundred forty-nine million, twenty-five thousand, seven hundred eighty-five".

Divisors: 1 5 17 19 85 95 323 1615 179720759 898603795 3055252903 3414694421 15276264515 17073472105 58049805157 290249025785