Base | Representation |
---|---|
bin | 1111101111111… |
… | …01111101100111 |
3 | 100012120222220121 |
4 | 13313331331213 |
5 | 232310042411 |
6 | 21035342411 |
7 | 3162635566 |
oct | 767757547 |
9 | 305528817 |
10 | 132112231 |
11 | 68634969 |
12 | 382b1a07 |
13 | 214a8024 |
14 | 1378dbdd |
15 | b8e9571 |
hex | 7dfdf67 |
132112231 has 4 divisors (see below), whose sum is σ = 132542872. Its totient is φ = 131681592.
The previous prime is 132112213. The next prime is 132112241. The reversal of 132112231 is 132211231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132211231 = 197 ⋅671123.
It is a cyclic number.
It is not a de Polignac number, because 132112231 - 217 = 131981159 is a prime.
It is a super-2 number, since 2×1321122312 = 34907283159594722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (132112241) 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, 214860 + ... + 215473.
It is an arithmetic number, because the mean of its divisors is an integer number (33135718).
Almost surely, 2132112231 is an apocalyptic number.
132112231 is a deficient number, since it is larger than the sum of its proper divisors (430641).
132112231 is an equidigital number, since it uses as much as digits as its factorization.
132112231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 430640.
The product of its digits is 72, while the sum is 16.
The square root of 132112231 is about 11494.0084826835. The cubic root of 132112231 is about 509.3085991757.
Adding to 132112231 its reverse (132211231), we get a palindrome (264323462).
The spelling of 132112231 in words is "one hundred thirty-two million, one hundred twelve thousand, two hundred thirty-one".
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