Base | Representation |
---|---|
bin | 110001101001… |
… | …000010010110 |
3 | 220111010200020 |
4 | 301221002112 |
5 | 11312410032 |
6 | 1142530010 |
7 | 215416122 |
oct | 61510226 |
9 | 26433606 |
10 | 13013142 |
11 | 7388a6a |
12 | 4436906 |
13 | 29081ac |
14 | 1a2a582 |
15 | 1220b2c |
hex | c69096 |
13013142 has 16 divisors (see below), whose sum is σ = 26415552. Its totient is φ = 4272840.
The previous prime is 13013137. The next prime is 13013179. The reversal of 13013142 is 24131031.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15784 + ... + 16587.
It is an arithmetic number, because the mean of its divisors is an integer number (1650972).
Almost surely, 213013142 is an apocalyptic number.
13013142 is an abundant number, since it is smaller than the sum of its proper divisors (13402410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13013142 is a wasteful number, since it uses less digits than its factorization.
13013142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32443.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 13013142 is about 3607.3732825977. The cubic root of 13013142 is about 235.2126760372.
Adding to 13013142 its reverse (24131031), we get a palindrome (37144173).
The spelling of 13013142 in words is "thirteen million, thirteen thousand, one hundred forty-two".
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