Base | Representation |
---|---|
bin | 1111101011000… |
… | …00110001101111 |
3 | 100011101021201222 |
4 | 13311200301233 |
5 | 232123442044 |
6 | 21013453555 |
7 | 3154314536 |
oct | 765406157 |
9 | 304337658 |
10 | 131468399 |
11 | 68235177 |
12 | 380412bb |
13 | 21310c6a |
14 | 1366331d |
15 | b81d8ee |
hex | 7d60c6f |
131468399 has 4 divisors (see below), whose sum is σ = 131497800. Its totient is φ = 131439000.
The previous prime is 131468383. The next prime is 131468411. The reversal of 131468399 is 993864131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131468399 - 24 = 131468383 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131428399) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6449 + ... + 17450.
It is an arithmetic number, because the mean of its divisors is an integer number (32874450).
Almost surely, 2131468399 is an apocalyptic number.
131468399 is a deficient number, since it is larger than the sum of its proper divisors (29401).
131468399 is an equidigital number, since it uses as much as digits as its factorization.
131468399 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29400.
The product of its digits is 139968, while the sum is 44.
The square root of 131468399 is about 11465.9669893123. The cubic root of 131468399 is about 508.4799015024.
The spelling of 131468399 in words is "one hundred thirty-one million, four hundred sixty-eight thousand, three hundred ninety-nine".
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