Base | Representation |
---|---|
bin | 11000101010100000… |
… | …01101001100111101 |
3 | 1021011211011110111200 |
4 | 30111100031030331 |
5 | 204104304044210 |
6 | 10025534410113 |
7 | 646064440032 |
oct | 142520151475 |
9 | 37154143450 |
10 | 13241471805 |
11 | 5685513831 |
12 | 2696660939 |
13 | 1330419723 |
14 | 8d8865389 |
15 | 52774e0c0 |
hex | 31540d33d |
13241471805 has 12 divisors (see below), whose sum is σ = 22951884540. Its totient is φ = 7062118272.
The previous prime is 13241471791. The next prime is 13241471827. The reversal of 13241471805 is 50817414231.
It can be written as a sum of positive squares in 2 ways, for example, as 4152900249 + 9088571556 = 64443^2 + 95334^2 .
It is not a de Polignac number, because 13241471805 - 217 = 13241340733 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 13241471805.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147127420 + ... + 147127509.
It is an arithmetic number, because the mean of its divisors is an integer number (1912657045).
Almost surely, 213241471805 is an apocalyptic number.
13241471805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13241471805 is a deficient number, since it is larger than the sum of its proper divisors (9710412735).
13241471805 is a wasteful number, since it uses less digits than its factorization.
13241471805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 294254940 (or 294254937 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The spelling of 13241471805 in words is "thirteen billion, two hundred forty-one million, four hundred seventy-one thousand, eight hundred five".
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