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8369323240 = 235209233081
BaseRepresentation
bin1111100101101100…
…11011110011101000
3210121021100200010211
413302312123303220
5114120021320430
63502251350504
7414254034205
oct76266336350
923537320124
108369323240
1136052a0473
121756a52434
13a34c03695
14595764cac
1533eb4e72a
hex1f2d9bce8

8369323240 has 16 divisors (see below), whose sum is σ = 18830977380. Its totient is φ = 3347729280.

The previous prime is 8369323223. The next prime is 8369323247. The reversal of 8369323240 is 423239638.

It can be written as a sum of positive squares in 2 ways, for example, as 7514462596 + 854860644 = 86686^2 + 29238^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 209233081 = 8369323240 / (8 + 3 + 6 + 9 + 3 + 2 + 3 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 8369323193 and 8369323202.

It is not an unprimeable number, because it can be changed into a prime (8369323247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104616501 + ... + 104616580.

Almost surely, 28369323240 is an apocalyptic number.

It is an amenable number.

8369323240 is an abundant number, since it is smaller than the sum of its proper divisors (10461654140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8369323240 is a wasteful number, since it uses less digits than its factorization.

8369323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209233092 (or 209233088 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 8369323240 is about 91484.0053779894. The cubic root of 8369323240 is about 2030.3151120110.

The spelling of 8369323240 in words is "eight billion, three hundred sixty-nine million, three hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 209233081 418466162 836932324 1046165405 1673864648 2092330810 4184661620 8369323240