Base | Representation |
---|---|
bin | 1111100010111… |
… | …00010001101111 |
3 | 100002101002002011 |
4 | 13301130101233 |
5 | 231340321031 |
6 | 20534542051 |
7 | 3142251661 |
oct | 761342157 |
9 | 302332064 |
10 | 130401391 |
11 | 6767654a |
12 | 37807927 |
13 | 210293b3 |
14 | 13466531 |
15 | b6ac6b1 |
hex | 7c5c46f |
130401391 has 2 divisors, whose sum is σ = 130401392. Its totient is φ = 130401390.
The previous prime is 130401379. The next prime is 130401409. The reversal of 130401391 is 193104031.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 130401391 - 211 = 130399343 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130401301) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65200695 + 65200696.
It is an arithmetic number, because the mean of its divisors is an integer number (65200696).
Almost surely, 2130401391 is an apocalyptic number.
130401391 is a deficient number, since it is larger than the sum of its proper divisors (1).
130401391 is an equidigital number, since it uses as much as digits as its factorization.
130401391 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 324, while the sum is 22.
The square root of 130401391 is about 11419.3428444898. The cubic root of 130401391 is about 507.1005419507.
The spelling of 130401391 in words is "one hundred thirty million, four hundred one thousand, three hundred ninety-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •