Base | Representation |
---|---|
bin | 1111101001000… |
… | …01101110010100 |
3 | 100010220011110112 |
4 | 13310201232110 |
5 | 232042211012 |
6 | 21004142152 |
7 | 3152160554 |
oct | 764415624 |
9 | 303804415 |
10 | 131210132 |
11 | 68079129 |
12 | 37b37958 |
13 | 21250541 |
14 | 135d7164 |
15 | b7bc122 |
hex | 7d21b94 |
131210132 has 6 divisors (see below), whose sum is σ = 229617738. Its totient is φ = 65605064.
The previous prime is 131210113. The next prime is 131210137. The reversal of 131210132 is 231012131.
It can be written as a sum of positive squares in only one way, i.e., 89038096 + 42172036 = 9436^2 + 6494^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131210137) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16401263 + ... + 16401270.
It is an arithmetic number, because the mean of its divisors is an integer number (38269623).
Almost surely, 2131210132 is an apocalyptic number.
It is an amenable number.
131210132 is a deficient number, since it is larger than the sum of its proper divisors (98407606).
131210132 is a wasteful number, since it uses less digits than its factorization.
131210132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32802537 (or 32802535 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 131210132 is about 11454.6991230674. The cubic root of 131210132 is about 508.1467170823.
Adding to 131210132 its reverse (231012131), we get a palindrome (362222263).
The spelling of 131210132 in words is "one hundred thirty-one million, two hundred ten thousand, one hundred thirty-two".
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