Base | Representation |
---|---|
bin | 11001001101000101… |
… | …00110001101101010 |
3 | 1021221000220200221220 |
4 | 30212202212031222 |
5 | 210203031134024 |
6 | 10114415042510 |
7 | 656215620252 |
oct | 144642461552 |
9 | 37830820856 |
10 | 13531505514 |
11 | 581420040a |
12 | 2757810436 |
13 | 13785380c7 |
14 | 9251a2962 |
15 | 542e3ee79 |
hex | 3268a636a |
13531505514 has 16 divisors (see below), whose sum is σ = 27064318752. Its totient is φ = 4510283888.
The previous prime is 13531505489. The next prime is 13531505527. The reversal of 13531505514 is 41550513531.
It is a super-4 number, since 4×135315055144 (a number of 42 digits) contains 4444 as substring.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126037 + ... + 207239.
It is an arithmetic number, because the mean of its divisors is an integer number (1691519922).
Almost surely, 213531505514 is an apocalyptic number.
13531505514 is an abundant number, since it is smaller than the sum of its proper divisors (13532813238).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13531505514 is a wasteful number, since it uses less digits than its factorization.
13531505514 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108981.
The product of its (nonzero) digits is 22500, while the sum is 33.
The spelling of 13531505514 in words is "thirteen billion, five hundred thirty-one million, five hundred five thousand, five hundred fourteen".
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