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290049892 = 22116592043
BaseRepresentation
bin10001010010011…
…100111101100100
3202012210001122121
4101102130331210
51043223044032
644440435324
710121245336
oct2122347544
9665701577
10290049892
111397a8860
1281178b44
1348125b72
142a743456
151a6e5a97
hex1149cf64

290049892 has 12 divisors (see below), whose sum is σ = 553731696. Its totient is φ = 131840840.

The previous prime is 290049889. The next prime is 290049911. The reversal of 290049892 is 298940092.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3295978 + ... + 3296065.

It is an arithmetic number, because the mean of its divisors is an integer number (46144308).

Almost surely, 2290049892 is an apocalyptic number.

290049892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

290049892 is a deficient number, since it is larger than the sum of its proper divisors (263681804).

290049892 is a wasteful number, since it uses less digits than its factorization.

290049892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592058 (or 6592056 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 290049892 is about 17030.8511824864. The cubic root of 290049892 is about 661.9485512966.

The spelling of 290049892 in words is "two hundred ninety million, forty-nine thousand, eight hundred ninety-two".

Divisors: 1 2 4 11 22 44 6592043 13184086 26368172 72512473 145024946 290049892