Base | Representation |
---|---|
bin | 11000011111000001… |
… | …10100110100001101 |
3 | 1020221002221120111112 |
4 | 30033200310310031 |
5 | 203410130240234 |
6 | 10012214301405 |
7 | 643515026261 |
oct | 141740646415 |
9 | 36832846445 |
10 | 13145165069 |
11 | 5636115093 |
12 | 266a357865 |
13 | 1316499caa |
14 | 8c9b560a1 |
15 | 51e078ace |
hex | 30f834d0d |
13145165069 has 4 divisors (see below), whose sum is σ = 13145824896. Its totient is φ = 13144505244.
The previous prime is 13145165063. The next prime is 13145165081. The reversal of 13145165069 is 96056154131.
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 not a de Polignac number, because 13145165069 - 24 = 13145165053 is a prime.
It is a super-2 number, since 2×131451650692 (a number of 21 digits) 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 (13145165063) 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, 299069 + ... + 340194.
It is an arithmetic number, because the mean of its divisors is an integer number (3286456224).
Almost surely, 213145165069 is an apocalyptic number.
It is an amenable number.
13145165069 is a deficient number, since it is larger than the sum of its proper divisors (659827).
13145165069 is an equidigital number, since it uses as much as digits as its factorization.
13145165069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 659826.
The product of its (nonzero) digits is 97200, while the sum is 41.
The spelling of 13145165069 in words is "thirteen billion, one hundred forty-five million, one hundred sixty-five thousand, sixty-nine".
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