Base | Representation |
---|---|
bin | 110011011011… |
… | …000011110101 |
3 | 221100212022222 |
4 | 303123003311 |
5 | 11422331211 |
6 | 1200532125 |
7 | 222402551 |
oct | 63330365 |
9 | 27325288 |
10 | 13480181 |
11 | 7677950 |
12 | 4621045 |
13 | 2a3c950 |
14 | 1b0c861 |
15 | 12b41db |
hex | cdb0f5 |
13480181 has 16 divisors (see below), whose sum is σ = 16003008. Its totient is φ = 11193600.
The previous prime is 13480171. The next prime is 13480183. The reversal of 13480181 is 18108431.
It is not a de Polignac number, because 13480181 - 214 = 13463797 is a prime.
It is a super-2 number, since 2×134801812 = 363430559585522, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13480181.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13480183) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14861 + ... + 15741.
It is an arithmetic number, because the mean of its divisors is an integer number (1000188).
Almost surely, 213480181 is an apocalyptic number.
13480181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
13480181 is a deficient number, since it is larger than the sum of its proper divisors (2522827).
13480181 is a wasteful number, since it uses less digits than its factorization.
13480181 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1012.
The product of its (nonzero) digits is 768, while the sum is 26.
The square root of 13480181 is about 3671.5365993001. The cubic root of 13480181 is about 237.9935796117.
The spelling of 13480181 in words is "thirteen million, four hundred eighty thousand, one hundred eighty-one".
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