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8680745 = 51736149
BaseRepresentation
bin100001000111…
…010100101001
3121100000202002
4201013110221
54210240440
6510020345
7133533203
oct41072451
917300662
108680745
114999a77
122aa76b5
131a4c248
14121d773
15b67115
hex847529

8680745 has 4 divisors (see below), whose sum is σ = 10416900. Its totient is φ = 6944592.

The previous prime is 8680741. The next prime is 8680753. The reversal of 8680745 is 5470868.

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 5895184 + 2785561 = 2428^2 + 1669^2 .

It is a cyclic number.

It is not a de Polignac number, because 8680745 - 22 = 8680741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8680699 and 8680708.

It is not an unprimeable number, because it can be changed into a prime (8680741) 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, 868070 + ... + 868079.

It is an arithmetic number, because the mean of its divisors is an integer number (2604225).

Almost surely, 28680745 is an apocalyptic number.

It is an amenable number.

8680745 is a deficient number, since it is larger than the sum of its proper divisors (1736155).

8680745 is a wasteful number, since it uses less digits than its factorization.

8680745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736154.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 8680745 is about 2946.3104045569. The cubic root of 8680745 is about 205.5191679226.

The spelling of 8680745 in words is "eight million, six hundred eighty thousand, seven hundred forty-five".

Divisors: 1 5 1736149 8680745