Base | Representation |
---|---|
bin | 10001000010101… |
… | …10110101011101 |
3 | 100222000020000101 |
4 | 20201112311131 |
5 | 243044241023 |
6 | 22104101101 |
7 | 3354104605 |
oct | 1041266535 |
9 | 328006011 |
10 | 142962013 |
11 | 73775527 |
12 | 3ba64791 |
13 | 2380660c |
14 | 14db5c05 |
15 | c83e1ad |
hex | 8856d5d |
142962013 has 4 divisors (see below), whose sum is σ = 143028828. Its totient is φ = 142895200.
The previous prime is 142962007. The next prime is 142962031. The reversal of 142962013 is 310269241.
142962013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 137288089 + 5673924 = 11717^2 + 2382^2 .
It is a cyclic number.
It is not a de Polignac number, because 142962013 - 25 = 142961981 is a prime.
It is a super-2 number, since 2×1429620132 = 40876274322024338, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142962913) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30088 + ... + 34513.
It is an arithmetic number, because the mean of its divisors is an integer number (35757207).
Almost surely, 2142962013 is an apocalyptic number.
It is an amenable number.
142962013 is a deficient number, since it is larger than the sum of its proper divisors (66815).
142962013 is an equidigital number, since it uses as much as digits as its factorization.
142962013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66814.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 142962013 is about 11956.6723213443. The cubic root of 142962013 is about 522.8858445907.
The spelling of 142962013 in words is "one hundred forty-two million, nine hundred sixty-two thousand, thirteen".
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