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8690000650 = 252415741809
BaseRepresentation
bin10000001011111011…
…01110001100001010
3211102121202202211221
420011331232030022
5120244120010100
63554144512254
7425226533602
oct100575561412
924377682757
108690000650
11375a308121
12182631b68a
13a86491026
145c619bc02
1535cd9501a
hex205f6e30a

8690000650 has 24 divisors (see below), whose sum is σ = 16167676140. Its totient is φ = 3475080960.

The previous prime is 8690000621. The next prime is 8690000651. The reversal of 8690000650 is 560000968.

It can be written as a sum of positive squares in 6 ways, for example, as 2142116089 + 6547884561 = 46283^2 + 80919^2 .

It is a super-2 number, since 2×86900006502 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8690000651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186946 + ... + 228754.

Almost surely, 28690000650 is an apocalyptic number.

8690000650 is a deficient number, since it is larger than the sum of its proper divisors (7477675490).

8690000650 is a wasteful number, since it uses less digits than its factorization.

8690000650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45978 (or 45973 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 8690000650 is about 93220.1729777413. The cubic root of 8690000650 is about 2055.9218538141.

The spelling of 8690000650 in words is "eight billion, six hundred ninety million, six hundred fifty", and thus it is an aban number.

Divisors: 1 2 5 10 25 50 4157 8314 20785 41570 41809 83618 103925 207850 209045 418090 1045225 2090450 173800013 347600026 869000065 1738000130 4345000325 8690000650