Base | Representation |
---|---|
bin | 110010001000… |
… | …101000000100 |
3 | 220201201011110 |
4 | 302020220010 |
5 | 11331030112 |
6 | 1145405020 |
7 | 216465264 |
oct | 62105004 |
9 | 26651143 |
10 | 13142532 |
11 | 74671a7 |
12 | 4499770 |
13 | 2952060 |
14 | 1a617a4 |
15 | 124913c |
hex | c88a04 |
13142532 has 24 divisors (see below), whose sum is σ = 33025216. Its totient is φ = 4043808.
The previous prime is 13142473. The next prime is 13142537. The reversal of 13142532 is 23524131.
It is a super-2 number, since 2×131425322 = 345452294742048, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13142499 and 13142508.
It is not an unprimeable number, because it can be changed into a prime (13142537) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41968 + ... + 42279.
Almost surely, 213142532 is an apocalyptic number.
13142532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13142532 is an abundant number, since it is smaller than the sum of its proper divisors (19882684).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13142532 is a wasteful number, since it uses less digits than its factorization.
13142532 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84267 (or 84265 counting only the distinct ones).
The product of its digits is 720, while the sum is 21.
The square root of 13142532 is about 3625.2630249404. The cubic root of 13142532 is about 235.9896816326.
Adding to 13142532 its reverse (23524131), we get a palindrome (36666663).
The spelling of 13142532 in words is "thirteen million, one hundred forty-two thousand, five hundred thirty-two".
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