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130755813 = 343585271
BaseRepresentation
bin1111100101100…
…10110011100101
3100010001002020220
413302302303211
5231433141223
620550314553
73145256166
oct762626345
9303032226
10130755813
1167898861
1237958a59
1321121806
141351976d
15b72c6e3
hex7cb2ce5

130755813 has 4 divisors (see below), whose sum is σ = 174341088. Its totient is φ = 87170540.

The previous prime is 130755811. The next prime is 130755869. The reversal of 130755813 is 318557031.

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 130755813 - 21 = 130755811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130755811) 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, 21792633 + ... + 21792638.

It is an arithmetic number, because the mean of its divisors is an integer number (43585272).

Almost surely, 2130755813 is an apocalyptic number.

It is an amenable number.

130755813 is a deficient number, since it is larger than the sum of its proper divisors (43585275).

130755813 is an equidigital number, since it uses as much as digits as its factorization.

130755813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43585274.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 130755813 is about 11434.8508079467. The cubic root of 130755813 is about 507.5595478025.

The spelling of 130755813 in words is "one hundred thirty million, seven hundred fifty-five thousand, eight hundred thirteen".

Divisors: 1 3 43585271 130755813