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290053161 = 32237917737
BaseRepresentation
bin10001010010011…
…101110000101001
3202012210020010200
4101102131300221
51043223200121
644440502413
710121261016
oct2122356051
9665706120
10290053161
11139800262
128117aa09
13481274b8
142a74470d
151a6e6a26
hex1149dc29

290053161 has 24 divisors (see below), whose sum is σ = 442740480. Its totient is φ = 182609856.

The previous prime is 290053111. The next prime is 290053199. The reversal of 290053161 is 161350092.

It is not a de Polignac number, because 290053161 - 26 = 290053097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290053111) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7485 + ... + 25221.

It is an arithmetic number, because the mean of its divisors is an integer number (18447520).

Almost surely, 2290053161 is an apocalyptic number.

It is an amenable number.

290053161 is a deficient number, since it is larger than the sum of its proper divisors (152687319).

290053161 is a wasteful number, since it uses less digits than its factorization.

290053161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17845 (or 17842 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 290053161 is about 17030.9471551056. The cubic root of 290053161 is about 661.9510381121.

The spelling of 290053161 in words is "two hundred ninety million, fifty-three thousand, one hundred sixty-one".

Divisors: 1 3 9 23 69 79 207 237 711 1817 5451 16353 17737 53211 159633 407951 1223853 1401223 3671559 4203669 12611007 32228129 96684387 290053161