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8640050 = 252172801
BaseRepresentation
bin100000111101…
…011000110010
3121020221220212
4200331120302
54202440200
6505104122
7133303436
oct40753062
917227825
108640050
114971441
122a88042
131a36873
14120c9c6
15b5a035
hex83d632

8640050 has 12 divisors (see below), whose sum is σ = 16070586. Its totient is φ = 3456000.

The previous prime is 8640017. The next prime is 8640059. The reversal of 8640050 is 500468.

It can be written as a sum of positive squares in 3 ways, for example, as 8300161 + 339889 = 2881^2 + 583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8639998 and 8640025.

It is not an unprimeable number, because it can be changed into a prime (8640059) 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 5 ways as a sum of consecutive naturals, for example, 86351 + ... + 86450.

Almost surely, 28640050 is an apocalyptic number.

8640050 is a deficient number, since it is larger than the sum of its proper divisors (7430536).

8640050 is a wasteful number, since it uses less digits than its factorization.

8640050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172813 (or 172808 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 8640050 is about 2939.3961965002. The cubic root of 8640050 is about 205.1975094282.

The spelling of 8640050 in words is "eight million, six hundred forty thousand, fifty".

Divisors: 1 2 5 10 25 50 172801 345602 864005 1728010 4320025 8640050