Base | Representation |
---|---|
bin | 1111101011110… |
… | …10101000000000 |
3 | 100011120122222012 |
4 | 13311322220000 |
5 | 232140334042 |
6 | 21020032052 |
7 | 3155235314 |
oct | 765725000 |
9 | 304518865 |
10 | 131574272 |
11 | 682a7775 |
12 | 38092628 |
13 | 2134a1cb |
14 | 1368db44 |
15 | b83ee82 |
hex | 7d7aa00 |
131574272 has 20 divisors (see below), whose sum is σ = 262892586. Its totient is φ = 65786880.
The previous prime is 131574269. The next prime is 131574277. The reversal of 131574272 is 272475131.
It can be written as a sum of positive squares in only one way, i.e., 122235136 + 9339136 = 11056^2 + 3056^2 .
It is a super-3 number, since 3×1315742723 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is not an unprimeable number, because it can be changed into a prime (131574277) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127979 + ... + 129002.
Almost surely, 2131574272 is an apocalyptic number.
It is an amenable number.
131574272 is a deficient number, since it is larger than the sum of its proper divisors (131318314).
131574272 is an frugal number, since it uses more digits than its factorization.
131574272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 256999 (or 256983 counting only the distinct ones).
The product of its digits is 11760, while the sum is 32.
The square root of 131574272 is about 11470.5828971330. The cubic root of 131574272 is about 508.6163597650.
The spelling of 131574272 in words is "one hundred thirty-one million, five hundred seventy-four thousand, two hundred seventy-two".
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