Base | Representation |
---|---|
bin | 100111001111001001… |
… | …010110111011011101 |
3 | 11000202010002220121202 |
4 | 213033021112323131 |
5 | 1142240242330324 |
6 | 31204305005245 |
7 | 3021010311335 |
oct | 471711267335 |
9 | 130663086552 |
10 | 42130042589 |
11 | 1695a346618 |
12 | 81b9323825 |
13 | 3c8545b8ab |
14 | 20794380c5 |
15 | 11689d58ae |
hex | 9cf256edd |
42130042589 has 4 divisors (see below), whose sum is σ = 42222231324. Its totient is φ = 42037853856.
The previous prime is 42130042567. The next prime is 42130042627. The reversal of 42130042589 is 98524003124.
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 34314598564 + 7815444025 = 185242^2 + 88405^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-42130042589 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42130042529) 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, 46093682 + ... + 46094595.
It is an arithmetic number, because the mean of its divisors is an integer number (10555557831).
Almost surely, 242130042589 is an apocalyptic number.
It is an amenable number.
42130042589 is a deficient number, since it is larger than the sum of its proper divisors (92188735).
42130042589 is an equidigital number, since it uses as much as digits as its factorization.
42130042589 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92188734.
The product of its (nonzero) digits is 69120, while the sum is 38.
The spelling of 42130042589 in words is "forty-two billion, one hundred thirty million, forty-two thousand, five hundred eighty-nine".
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