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290245068 = 223241196643
BaseRepresentation
bin10001010011001…
…100100111001100
3202020010222101100
4101103030213030
51043300320233
644444543100
710123020351
oct2123144714
9666128340
10290245068
11139921463
1281251a90
1348193959
142a794628
151a733813
hex114cc9cc

290245068 has 36 divisors (see below), whose sum is σ = 751573368. Its totient is φ = 94388160.

The previous prime is 290245061. The next prime is 290245129. The reversal of 290245068 is 860542092.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (290245061) 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 11 ways as a sum of consecutive naturals, for example, 96846 + ... + 99797.

It is an arithmetic number, because the mean of its divisors is an integer number (20877038).

Almost surely, 2290245068 is an apocalyptic number.

It is an amenable number.

290245068 is an abundant number, since it is smaller than the sum of its proper divisors (461328300).

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

290245068 is a wasteful number, since it uses less digits than its factorization.

290245068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196694 (or 196689 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 290245068 is about 17036.5802906569. The cubic root of 290245068 is about 662.0969941517.

The spelling of 290245068 in words is "two hundred ninety million, two hundred forty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 246 369 492 738 1476 196643 393286 589929 786572 1179858 1769787 2359716 3539574 7079148 8062363 16124726 24187089 32249452 48374178 72561267 96748356 145122534 290245068