Base | Representation |
---|---|
bin | 110010001010… |
… | …110000110000 |
3 | 220202011011110 |
4 | 302022300300 |
5 | 11331320110 |
6 | 1145513320 |
7 | 216532632 |
oct | 62126060 |
9 | 26664143 |
10 | 13151280 |
11 | 747282a |
12 | 44a2840 |
13 | 295602c |
14 | 1a64a52 |
15 | 124ba20 |
hex | c8ac30 |
13151280 has 80 divisors (see below), whose sum is σ = 41899104. Its totient is φ = 3409920.
The previous prime is 13151273. The next prime is 13151291. The reversal of 13151280 is 8215131.
It is a tau number, because it is divible by the number of its divisors (80).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8140 + ... + 9620.
Almost surely, 213151280 is an apocalyptic number.
13151280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13151280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20949552).
13151280 is an abundant number, since it is smaller than the sum of its proper divisors (28747824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13151280 is a wasteful number, since it uses less digits than its factorization.
13151280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1534 (or 1528 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 21.
The square root of 13151280 is about 3626.4693573778. The cubic root of 13151280 is about 236.0420302428.
It can be divided in two parts, 13151 and 280, that added together give a palindrome (13431).
The spelling of 13151280 in words is "thirteen million, one hundred fifty-one thousand, two hundred eighty".
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