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8900601649 = 943432
BaseRepresentation
bin10000100101000010…
…00110011100110001
3211222022001102002221
420102201012130301
5121212023223044
64031110441041
7433364602642
oct102241063461
924868042087
108900601649
113858180835
121884963181
13abacba5c4
1460613d6c9
153715e5484
hex212846731

8900601649 has 3 divisors (see below), whose sum is σ = 8900695993. Its totient is φ = 8900507306.

The previous prime is 8900601607. The next prime is 8900601679. The reversal of 8900601649 is 9461060098.

The square root of 8900601649 is 94343.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 8900601649 - 215 = 8900568881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8900601679) 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 2 ways as a sum of consecutive naturals, for example, 47172 + ... + 141514.

Almost surely, 28900601649 is an apocalyptic number.

8900601649 is the 94343-rd square number.

8900601649 is the 47172-nd centered octagonal number.

It is an amenable number.

8900601649 is a deficient number, since it is larger than the sum of its proper divisors (94344).

8900601649 is an frugal number, since it uses more digits than its factorization.

8900601649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188686 (or 94343 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The cubic root of 8900601649 is about 2072.3977946837.

The spelling of 8900601649 in words is "eight billion, nine hundred million, six hundred one thousand, six hundred forty-nine".

Divisors: 1 94343 8900601649