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129389113 = 761303019
BaseRepresentation
bin1111011011001…
…01001000111001
3100000110122111101
413231211020321
5231110422423
620501131401
73130534510
oct755451071
9300418441
10129389113
1167044a57
12373b9b61
1320a63709
1413281677
15b55c7ad
hex7b65239

129389113 has 8 divisors (see below), whose sum is σ = 150297920. Its totient is φ = 109086480.

The previous prime is 129389089. The next prime is 129389119. The reversal of 129389113 is 311983921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129389113 - 25 = 129389081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129389119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151083 + ... + 151936.

It is an arithmetic number, because the mean of its divisors is an integer number (18787240).

Almost surely, 2129389113 is an apocalyptic number.

It is an amenable number.

129389113 is a deficient number, since it is larger than the sum of its proper divisors (20908807).

129389113 is an equidigital number, since it uses as much as digits as its factorization.

129389113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303087.

The product of its digits is 11664, while the sum is 37.

The square root of 129389113 is about 11374.9335382674. The cubic root of 129389113 is about 505.7849609885.

The spelling of 129389113 in words is "one hundred twenty-nine million, three hundred eighty-nine thousand, one hundred thirteen".

Divisors: 1 7 61 427 303019 2121133 18484159 129389113