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130868245 = 526173649
BaseRepresentation
bin1111100110011…
…10010000010101
3100010020210111001
413303032100111
5232000240440
620552543301
73146235034
oct763162025
9303223431
10130868245
1167965282
12379b1b31
1321160a41
141354871b
15b750b9a
hex7cce415

130868245 has 4 divisors (see below), whose sum is σ = 157041900. Its totient is φ = 104694592.

The previous prime is 130868201. The next prime is 130868251. The reversal of 130868245 is 542868031.

It is a happy number.

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 44916804 + 85951441 = 6702^2 + 9271^2 .

It is a cyclic number.

It is not a de Polignac number, because 130868245 - 29 = 130867733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13086820 + ... + 13086829.

It is an arithmetic number, because the mean of its divisors is an integer number (39260475).

Almost surely, 2130868245 is an apocalyptic number.

It is an amenable number.

130868245 is a deficient number, since it is larger than the sum of its proper divisors (26173655).

130868245 is an equidigital number, since it uses as much as digits as its factorization.

130868245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26173654.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 130868245 is about 11439.7659504030. The cubic root of 130868245 is about 507.7049832400.

The spelling of 130868245 in words is "one hundred thirty million, eight hundred sixty-eight thousand, two hundred forty-five".

Divisors: 1 5 26173649 130868245