Base | Representation |
---|---|
bin | 1111110010010… |
… | …11110100101100 |
3 | 100020012012101100 |
4 | 13321023310230 |
5 | 232400244043 |
6 | 21050243100 |
7 | 3165434433 |
oct | 771136454 |
9 | 306165340 |
10 | 132431148 |
11 | 68832533 |
12 | 38426490 |
13 | 2158a235 |
14 | 1383411a |
15 | b95dcd3 |
hex | 7e4bd2c |
132431148 has 144 divisors (see below), whose sum is σ = 369847296. Its totient is φ = 39832320.
The previous prime is 132431147. The next prime is 132431149. The reversal of 132431148 is 841134231.
It is an interprime number because it is at equal distance from previous prime (132431147) and next prime (132431149).
It is not an unprimeable number, because it can be changed into a prime (132431147) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1595515 + ... + 1595597.
It is an arithmetic number, because the mean of its divisors is an integer number (2568384).
Almost surely, 2132431148 is an apocalyptic number.
132431148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 132431148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184923648).
132431148 is an abundant number, since it is smaller than the sum of its proper divisors (237416148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
132431148 is a wasteful number, since it uses less digits than its factorization.
132431148 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 204 (or 199 counting only the distinct ones).
The product of its digits is 2304, while the sum is 27.
The square root of 132431148 is about 11507.8733048292. The cubic root of 132431148 is about 509.7180910281.
Adding to 132431148 its reverse (841134231), we get a palindrome (973565379).
The spelling of 132431148 in words is "one hundred thirty-two million, four hundred thirty-one thousand, one hundred forty-eight".
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