Base | Representation |
---|---|
bin | 100101010110001… |
… | …0100001110001010 |
3 | 10020022222122202200 |
4 | 1022230110032022 |
5 | 10031300144041 |
6 | 324202541030 |
7 | 43024303401 |
oct | 11254241612 |
9 | 3208878680 |
10 | 1253131146 |
11 | 5933a5a83 |
12 | 2ab807776 |
13 | 16c807b27 |
14 | bc600638 |
15 | 750331b6 |
hex | 4ab1438a |
1253131146 has 24 divisors (see below), whose sum is σ = 2715810240. Its totient is φ = 417603816.
The previous prime is 1253131141. The next prime is 1253131147. The reversal of 1253131146 is 6411313521.
It is a happy number.
1253131146 is a `hidden beast` number, since 12 + 531 + 3 + 114 + 6 = 666.
It is not an unprimeable number, because it can be changed into a prime (1253131141) 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 in 11 ways as a sum of consecutive naturals, for example, 99141 + ... + 111063.
It is an arithmetic number, because the mean of its divisors is an integer number (113158760).
Almost surely, 21253131146 is an apocalyptic number.
1253131146 is an abundant number, since it is smaller than the sum of its proper divisors (1462679094).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1253131146 is a wasteful number, since it uses less digits than its factorization.
1253131146 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17770 (or 17767 counting only the distinct ones).
The product of its digits is 2160, while the sum is 27.
The square root of 1253131146 is about 35399.5924552812. The cubic root of 1253131146 is about 1078.1160416546.
Adding to 1253131146 its reverse (6411313521), we get a palindrome (7664444667).
The spelling of 1253131146 in words is "one billion, two hundred fifty-three million, one hundred thirty-one thousand, one hundred forty-six".
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