Base | Representation |
---|---|
bin | 1111101010000… |
… | …11010001110100 |
3 | 100011011010222220 |
4 | 13311003101310 |
5 | 232111110242 |
6 | 21011122340 |
7 | 3153302346 |
oct | 765032164 |
9 | 304133886 |
10 | 131347572 |
11 | 68162414 |
12 | 37ba33b0 |
13 | 2129ac75 |
14 | 13631296 |
15 | b7e7bec |
hex | 7d43474 |
131347572 has 24 divisors (see below), whose sum is σ = 319803456. Its totient is φ = 41878848.
The previous prime is 131347561. The next prime is 131347597. The reversal of 131347572 is 275743131.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237673 + ... + 238224.
It is an arithmetic number, because the mean of its divisors is an integer number (13325144).
Almost surely, 2131347572 is an apocalyptic number.
131347572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131347572 is an abundant number, since it is smaller than the sum of its proper divisors (188455884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131347572 is a wasteful number, since it uses less digits than its factorization.
131347572 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 475927 (or 475925 counting only the distinct ones).
The product of its digits is 17640, while the sum is 33.
The square root of 131347572 is about 11460.6968374528. The cubic root of 131347572 is about 508.3240796906.
It can be divided in two parts, 13134 and 7572, that added together give a triangular number (20706 = T203).
The spelling of 131347572 in words is "one hundred thirty-one million, three hundred forty-seven thousand, five hundred seventy-two".
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