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8863990049 = 36972397617
BaseRepresentation
bin10000100000101010…
…11100000100100001
3211212202011100102202
420100111130010201
5121123140140144
64023322022545
7432441446405
oct102025340441
924782140382
108863990049
113839544a12
121874647a55
13ab353c135
1460132d105
1536d2b264e
hex21055c121

8863990049 has 4 divisors (see below), whose sum is σ = 8866391364. Its totient is φ = 8861588736.

The previous prime is 8863990007. The next prime is 8863990061. The reversal of 8863990049 is 9400993688.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2563599424 + 6300390625 = 50632^2 + 79375^2 .

It is a cyclic number.

It is not a de Polignac number, because 8863990049 - 212 = 8863985953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8863989976 and 8863990003.

It is not an unprimeable number, because it can be changed into a prime (8863920049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1195112 + ... + 1202505.

It is an arithmetic number, because the mean of its divisors is an integer number (2216597841).

Almost surely, 28863990049 is an apocalyptic number.

It is an amenable number.

8863990049 is a deficient number, since it is larger than the sum of its proper divisors (2401315).

8863990049 is a wasteful number, since it uses less digits than its factorization.

8863990049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401314.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The square root of 8863990049 is about 94148.7655203190. The cubic root of 8863990049 is about 2069.5523664306.

The spelling of 8863990049 in words is "eight billion, eight hundred sixty-three million, nine hundred ninety thousand, forty-nine".

Divisors: 1 3697 2397617 8863990049