Base | Representation |
---|---|
bin | 1111101010010… |
… | …00100111000101 |
3 | 100011012020221211 |
4 | 13311020213011 |
5 | 232112310123 |
6 | 21011411421 |
7 | 3153423130 |
oct | 765104705 |
9 | 304166854 |
10 | 131369413 |
11 | 6817786a |
12 | 37bb3b71 |
13 | 212a7ba6 |
14 | 13639217 |
15 | b7ee40d |
hex | 7d489c5 |
131369413 has 16 divisors (see below), whose sum is σ = 157121536. Its totient is φ = 107464320.
The previous prime is 131369389. The next prime is 131369419. The reversal of 131369413 is 314963131.
It is a cyclic number.
It is not a de Polignac number, because 131369413 - 213 = 131361221 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131369419) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11695 + ... + 19987.
It is an arithmetic number, because the mean of its divisors is an integer number (9820096).
Almost surely, 2131369413 is an apocalyptic number.
It is an amenable number.
131369413 is a deficient number, since it is larger than the sum of its proper divisors (25752123).
131369413 is an equidigital number, since it uses as much as digits as its factorization.
131369413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8404.
The product of its digits is 5832, while the sum is 31.
The square root of 131369413 is about 11461.6496631157. The cubic root of 131369413 is about 508.3522535166.
The spelling of 131369413 in words is "one hundred thirty-one million, three hundred sixty-nine thousand, four hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •