Search a number
-
+
129046807 is a prime number
BaseRepresentation
bin1111011000100…
…01100100010111
322222211020221101
413230101210113
5231013444212
620445530531
73124610521
oct754214427
9288736841
10129046807
116693085a
1237273a47
1320973976
14131d2a11
15b4e1157
hex7b11917

129046807 has 2 divisors, whose sum is σ = 129046808. Its totient is φ = 129046806.

The previous prime is 129046793. The next prime is 129046811. The reversal of 129046807 is 708640921.

It is a strong prime.

It is an emirp because it is prime and its reverse (708640921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129046807 - 211 = 129044759 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129046837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64523403 + 64523404.

It is an arithmetic number, because the mean of its divisors is an integer number (64523404).

Almost surely, 2129046807 is an apocalyptic number.

129046807 is a deficient number, since it is larger than the sum of its proper divisors (1).

129046807 is an equidigital number, since it uses as much as digits as its factorization.

129046807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 129046807 is about 11359.8770679968. The cubic root of 129046807 is about 505.3385397880.

The spelling of 129046807 in words is "one hundred twenty-nine million, forty-six thousand, eight hundred seven".