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130745047 = 157832771
BaseRepresentation
bin1111100101100…
…00001011010111
3100010000112111011
413302300023113
5231432320142
620550153051
73145212616
oct762601327
9303015434
10130745047
1167890764
1237952787
1321119944
141351587d
15b729417
hex7cb02d7

130745047 has 4 divisors (see below), whose sum is σ = 131577976. Its totient is φ = 129912120.

The previous prime is 130745033. The next prime is 130745051. The reversal of 130745047 is 740547031.

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 130745047 - 27 = 130744919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130745057) 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, 416229 + ... + 416542.

It is an arithmetic number, because the mean of its divisors is an integer number (32894494).

Almost surely, 2130745047 is an apocalyptic number.

130745047 is a deficient number, since it is larger than the sum of its proper divisors (832929).

130745047 is an equidigital number, since it uses as much as digits as its factorization.

130745047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832928.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 130745047 is about 11434.3800444099. The cubic root of 130745047 is about 507.5456171635.

The spelling of 130745047 in words is "one hundred thirty million, seven hundred forty-five thousand, forty-seven".

Divisors: 1 157 832771 130745047