Base | Representation |
---|---|
bin | 10100001011100… |
… | …01010110010101 |
3 | 102210112120101022 |
4 | 22011301112111 |
5 | 321314110023 |
6 | 24444210525 |
7 | 4123620212 |
oct | 1205612625 |
9 | 383476338 |
10 | 169285013 |
11 | 87614377 |
12 | 48839a45 |
13 | 290c1a61 |
14 | 186a8b09 |
15 | ecdd7c8 |
hex | a171595 |
169285013 has 4 divisors (see below), whose sum is σ = 169595040. Its totient is φ = 168974988.
The previous prime is 169285007. The next prime is 169285049. The reversal of 169285013 is 310582961.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-169285013 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 (169285063) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154193 + ... + 155286.
It is an arithmetic number, because the mean of its divisors is an integer number (42398760).
Almost surely, 2169285013 is an apocalyptic number.
It is an amenable number.
169285013 is a deficient number, since it is larger than the sum of its proper divisors (310027).
169285013 is an equidigital number, since it uses as much as digits as its factorization.
169285013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 310026.
The product of its (nonzero) digits is 12960, while the sum is 35.
The square root of 169285013 is about 13010.9574205744. The cubic root of 169285013 is about 553.1881101046.
The spelling of 169285013 in words is "one hundred sixty-nine million, two hundred eighty-five thousand, thirteen".
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