Base | Representation |
---|---|
bin | 1111101001011… |
… | …10011001111000 |
3 | 100010222210201020 |
4 | 13310232121320 |
5 | 232100341242 |
6 | 21005222440 |
7 | 3152465154 |
oct | 764563170 |
9 | 303883636 |
10 | 131262072 |
11 | 68104157 |
12 | 37b61a20 |
13 | 2126b086 |
14 | 1360c064 |
15 | b7cc6ec |
hex | 7d2e678 |
131262072 has 32 divisors (see below), whose sum is σ = 328588800. Its totient is φ = 43696224.
The previous prime is 131262071. The next prime is 131262077. The reversal of 131262072 is 270262131.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131262071) 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, 17433 + ... + 23799.
It is an arithmetic number, because the mean of its divisors is an integer number (10268400).
Almost surely, 2131262072 is an apocalyptic number.
131262072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131262072 is an abundant number, since it is smaller than the sum of its proper divisors (197326728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131262072 is a wasteful number, since it uses less digits than its factorization.
131262072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7235 (or 7231 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 131262072 is about 11456.9660905495. The cubic root of 131262072 is about 508.2137588019.
The spelling of 131262072 in words is "one hundred thirty-one million, two hundred sixty-two thousand, seventy-two".
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