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290112208 = 24173592971
BaseRepresentation
bin10001010010101…
…100001011010000
3202012220020010121
4101102230023100
51043232042313
644442040024
710121625121
oct2122541320
9665806117
10290112208
11139840661
12811a9014
1348148339
142a75c048
151a70928d
hex114ac2d0

290112208 has 40 divisors (see below), whose sum is σ = 597015360. Its totient is φ = 136097280.

The previous prime is 290112181. The next prime is 290112217. The reversal of 290112208 is 802211092.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96163 + ... + 99133.

It is an arithmetic number, because the mean of its divisors is an integer number (14925384).

Almost surely, 2290112208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290112208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298507680).

290112208 is an abundant number, since it is smaller than the sum of its proper divisors (306903152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

290112208 is a wasteful number, since it uses less digits than its factorization.

290112208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 3349 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 290112208 is about 17032.6805876233. The cubic root of 290112208 is about 661.9959535232.

The spelling of 290112208 in words is "two hundred ninety million, one hundred twelve thousand, two hundred eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 359 718 1436 2872 2971 5744 5942 6103 11884 12206 23768 24412 47536 48824 50507 97648 101014 202028 404056 808112 1066589 2133178 4266356 8532712 17065424 18132013 36264026 72528052 145056104 290112208