Base | Representation |
---|---|
bin | 110010001001… |
… | …110100110010 |
3 | 220201221220022 |
4 | 302021310302 |
5 | 11331204232 |
6 | 1145443442 |
7 | 216515510 |
oct | 62116462 |
9 | 26657808 |
10 | 13147442 |
11 | 746a960 |
12 | 44a0582 |
13 | 2954369 |
14 | 1a634b0 |
15 | 124a812 |
hex | c89d32 |
13147442 has 32 divisors (see below), whose sum is σ = 25021440. Its totient is φ = 5032080.
The previous prime is 13147427. The next prime is 13147447. The reversal of 13147442 is 24474131.
It is a super-2 number, since 2×131474422 = 345710462286728, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13147447) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8363 + ... + 9809.
It is an arithmetic number, because the mean of its divisors is an integer number (781920).
Almost surely, 213147442 is an apocalyptic number.
13147442 is a deficient number, since it is larger than the sum of its proper divisors (11873998).
13147442 is a wasteful number, since it uses less digits than its factorization.
13147442 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1526.
The product of its digits is 2688, while the sum is 26.
The square root of 13147442 is about 3625.9401539463. The cubic root of 13147442 is about 236.0190662562.
The spelling of 13147442 in words is "thirteen million, one hundred forty-seven thousand, four hundred forty-two".
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