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2398968490 = 25829289381
BaseRepresentation
bin1000111011111101…
…0101101010101010
320012012002020002211
42032333111222222
514403113442430
61034014115334
7113306616142
oct21677255252
96165066084
102398968490
111021178596
1256b4abb4a
132c30172a9
1418a871922
15e092072a
hex8efd5aaa

2398968490 has 16 divisors (see below), whose sum is σ = 4323367080. Its totient is φ = 958426560.

The previous prime is 2398968469. The next prime is 2398968493. The reversal of 2398968490 is 948698932.

It can be written as a sum of positive squares in 4 ways, for example, as 2342463201 + 56505289 = 48399^2 + 7517^2 .

It is not an unprimeable number, because it can be changed into a prime (2398968493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136401 + ... + 152980.

Almost surely, 22398968490 is an apocalyptic number.

2398968490 is a deficient number, since it is larger than the sum of its proper divisors (1924398590).

2398968490 is a wasteful number, since it uses less digits than its factorization.

2398968490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290217.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The square root of 2398968490 is about 48979.2659193663. The cubic root of 2398968490 is about 1338.6740596825.

The spelling of 2398968490 in words is "two billion, three hundred ninety-eight million, nine hundred sixty-eight thousand, four hundred ninety".

Divisors: 1 2 5 10 829 1658 4145 8290 289381 578762 1446905 2893810 239896849 479793698 1199484245 2398968490