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290252965 = 5471577867
BaseRepresentation
bin10001010011001…
…110100010100101
3202020011101012211
4101103032202211
51043301043330
644445043421
710123052362
oct2123164245
9666141184
10290252965
11139927392
1281256571
1348197422
142a797469
151a735d2a
hex114ce8a5

290252965 has 16 divisors (see below), whose sum is σ = 358025472. Its totient is φ = 225785664.

The previous prime is 290252953. The next prime is 290253001. The reversal of 290252965 is 569252092.

It is a cyclic number.

It is not a de Polignac number, because 290252965 - 25 = 290252933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32962 + ... + 40828.

It is an arithmetic number, because the mean of its divisors is an integer number (22376592).

Almost surely, 2290252965 is an apocalyptic number.

It is an amenable number.

290252965 is a deficient number, since it is larger than the sum of its proper divisors (67772507).

290252965 is a wasteful number, since it uses less digits than its factorization.

290252965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8076.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 290252965 is about 17036.8120550765. The cubic root of 290252965 is about 662.1029988849.

The spelling of 290252965 in words is "two hundred ninety million, two hundred fifty-two thousand, nine hundred sixty-five".

Divisors: 1 5 47 157 235 785 7379 7867 36895 39335 369749 1235119 1848745 6175595 58050593 290252965