Base | Representation |
---|---|
bin | 1111101010110… |
… | …10011000010111 |
3 | 100011022221210121 |
4 | 13311122120113 |
5 | 232122122244 |
6 | 21013132411 |
7 | 3154145260 |
oct | 765323027 |
9 | 304287717 |
10 | 131442199 |
11 | 68217519 |
12 | 3802a107 |
13 | 21302065 |
14 | 13657967 |
15 | b815c84 |
hex | 7d5a617 |
131442199 has 8 divisors (see below), whose sum is σ = 150339488. Its totient is φ = 112574880.
The previous prime is 131442197. The next prime is 131442253. The reversal of 131442199 is 991244131.
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 131442199 - 21 = 131442197 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 (131442191) 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, 2869 + ... + 16465.
It is an arithmetic number, because the mean of its divisors is an integer number (18792436).
Almost surely, 2131442199 is an apocalyptic number.
131442199 is a deficient number, since it is larger than the sum of its proper divisors (18897289).
131442199 is a wasteful number, since it uses less digits than its factorization.
131442199 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14985.
The product of its digits is 7776, while the sum is 34.
The square root of 131442199 is about 11464.8244208099. The cubic root of 131442199 is about 508.4461213733.
The spelling of 131442199 in words is "one hundred thirty-one million, four hundred forty-two thousand, one hundred ninety-nine".
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