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130894643 = 1111899513
BaseRepresentation
bin1111100110101…
…00101100110011
3100010022010200202
413303110230303
5232002112033
620553305415
73146405015
oct763245463
9303263622
10130894643
11679830a0
1237a0526b
132116ca69
14135541b5
15b7588e8
hex7cd4b33

130894643 has 4 divisors (see below), whose sum is σ = 142794168. Its totient is φ = 118995120.

The previous prime is 130894639. The next prime is 130894657. The reversal of 130894643 is 346498031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130894643 - 22 = 130894639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130894597 and 130894606.

It is not an unprimeable number, because it can be changed into a prime (130894843) 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, 5949746 + ... + 5949767.

It is an arithmetic number, because the mean of its divisors is an integer number (35698542).

Almost surely, 2130894643 is an apocalyptic number.

130894643 is a deficient number, since it is larger than the sum of its proper divisors (11899525).

130894643 is a wasteful number, since it uses less digits than its factorization.

130894643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11899524.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 130894643 is about 11440.9196745716. The cubic root of 130894643 is about 507.7391180679.

The spelling of 130894643 in words is "one hundred thirty million, eight hundred ninety-four thousand, six hundred forty-three".

Divisors: 1 11 11899513 130894643