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129794113 = 373507949
BaseRepresentation
bin1111011110010…
…00000001000001
3100001020020001101
413233020001001
5231211402423
620513534401
73134142331
oct757100101
9301206041
10129794113
11672a1269
1237574401
1320b75b67
14133490c1
15b5dc7ad
hex7bc8041

129794113 has 4 divisors (see below), whose sum is σ = 133302100. Its totient is φ = 126286128.

The previous prime is 129794101. The next prime is 129794123. The reversal of 129794113 is 311497921.

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 75742209 + 54051904 = 8703^2 + 7352^2 .

It is a cyclic number.

It is not a de Polignac number, because 129794113 - 213 = 129785921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 3507949 = 129794113 / (1 + 2 + 9 + 7 + 9 + 4 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129794123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753938 + ... + 1754011.

It is an arithmetic number, because the mean of its divisors is an integer number (33325525).

Almost surely, 2129794113 is an apocalyptic number.

It is an amenable number.

129794113 is a deficient number, since it is larger than the sum of its proper divisors (3507987).

129794113 is an equidigital number, since it uses as much as digits as its factorization.

129794113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507986.

The product of its digits is 13608, while the sum is 37.

The square root of 129794113 is about 11392.7219311278. The cubic root of 129794113 is about 506.3121293865.

The spelling of 129794113 in words is "one hundred twenty-nine million, seven hundred ninety-four thousand, one hundred thirteen".

Divisors: 1 37 3507949 129794113