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2008812961 = 67229130927
BaseRepresentation
bin111011110111100…
…0000110110100001
312011222221021100001
41313233000312201
513103224003321
6531155500001
7100531425361
oct16757006641
95158837301
102008812961
11940a16a01
124808b7601
1326024182c
14150b109a1
15bb553c91
hex77bc0da1

2008812961 has 8 divisors (see below), whose sum is σ = 2047713920. Its totient is φ = 1970174448.

The previous prime is 2008812941. The next prime is 2008813039. The reversal of 2008812961 is 1692188002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2008812961 - 211 = 2008810913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2008812961.

It is not an unprimeable number, because it can be changed into a prime (2008812941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50121 + ... + 80806.

It is an arithmetic number, because the mean of its divisors is an integer number (255964240).

Almost surely, 22008812961 is an apocalyptic number.

It is an amenable number.

2008812961 is a deficient number, since it is larger than the sum of its proper divisors (38900959).

2008812961 is a wasteful number, since it uses less digits than its factorization.

2008812961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131223.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 2008812961 is about 44819.7831431612. The cubic root of 2008812961 is about 1261.7689441562.

The spelling of 2008812961 in words is "two billion, eight million, eight hundred twelve thousand, nine hundred sixty-one".

Divisors: 1 67 229 15343 130927 8772109 29982283 2008812961