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130386777 = 343462259
BaseRepresentation
bin1111100010110…
…00101101011001
3100002100100000220
413301120231121
5231334334102
620534350253
73142161243
oct761305531
9302310026
10130386777
1167666574
12377bb389
1321022851
1413461093
15b6a81bc
hex7c58b59

130386777 has 4 divisors (see below), whose sum is σ = 173849040. Its totient is φ = 86924516.

The previous prime is 130386769. The next prime is 130386799. The reversal of 130386777 is 777683031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130386777 - 23 = 130386769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130386077) 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, 21731127 + ... + 21731132.

It is an arithmetic number, because the mean of its divisors is an integer number (43462260).

Almost surely, 2130386777 is an apocalyptic number.

It is an amenable number.

130386777 is a deficient number, since it is larger than the sum of its proper divisors (43462263).

130386777 is an equidigital number, since it uses as much as digits as its factorization.

130386777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43462262.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 130386777 is about 11418.7029473579. The cubic root of 130386777 is about 507.0815977658.

The spelling of 130386777 in words is "one hundred thirty million, three hundred eighty-six thousand, seven hundred seventy-seven".

Divisors: 1 3 43462259 130386777