Base | Representation |
---|---|
bin | 1111000011011… |
… | …1100011110011 |
3 | 11101210221201110 |
4 | 3300313203303 |
5 | 112131022011 |
6 | 10133204403 |
7 | 1364461563 |
oct | 360674363 |
9 | 141727643 |
10 | 63142131 |
11 | 32707688 |
12 | 19190703 |
13 | 1010a210 |
14 | 8558da3 |
15 | 5823ba6 |
hex | 3c378f3 |
63142131 has 32 divisors (see below), whose sum is σ = 96864768. Its totient is φ = 36241920.
The previous prime is 63142129. The next prime is 63142147. The reversal of 63142131 is 13124136.
It is not a de Polignac number, because 63142131 - 21 = 63142129 is a prime.
It is a super-2 number, since 2×631421312 = 7973857414442322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 63142098 and 63142107.
It is not an unprimeable number, because it can be changed into a prime (63142171) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86490 + ... + 87216.
It is an arithmetic number, because the mean of its divisors is an integer number (3027024).
Almost surely, 263142131 is an apocalyptic number.
63142131 is a deficient number, since it is larger than the sum of its proper divisors (33722637).
63142131 is a wasteful number, since it uses less digits than its factorization.
63142131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 891.
The product of its digits is 432, while the sum is 21.
The square root of 63142131 is about 7946.2023004703. The cubic root of 63142131 is about 398.2047274625.
Adding to 63142131 its reverse (13124136), we get a palindrome (76266267).
The spelling of 63142131 in words is "sixty-three million, one hundred forty-two thousand, one hundred thirty-one".
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