Base | Representation |
---|---|
bin | 110001110011… |
… | …001111000111 |
3 | 220120020222112 |
4 | 301303033013 |
5 | 11320224134 |
6 | 1143451235 |
7 | 215651663 |
oct | 61631707 |
9 | 26506875 |
10 | 13054919 |
11 | 7407399 |
12 | 4456b1b |
13 | 2921207 |
14 | 1a3b8a3 |
15 | 122d1ce |
hex | c733c7 |
13054919 has 4 divisors (see below), whose sum is σ = 13742040. Its totient is φ = 12367800.
The previous prime is 13054913. The next prime is 13054927. The reversal of 13054919 is 91945031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91945031 = 919 ⋅100049.
It is a cyclic number.
It is not a de Polignac number, because 13054919 - 24 = 13054903 is a prime.
It is a super-2 number, since 2×130549192 = 340861820193122, which contains 22 as substring.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13054913) 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, 343532 + ... + 343569.
It is an arithmetic number, because the mean of its divisors is an integer number (3435510).
Almost surely, 213054919 is an apocalyptic number.
13054919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
13054919 is a deficient number, since it is larger than the sum of its proper divisors (687121).
13054919 is an equidigital number, since it uses as much as digits as its factorization.
13054919 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 687120.
The product of its (nonzero) digits is 4860, while the sum is 32.
The square root of 13054919 is about 3613.1591440179. The cubic root of 13054919 is about 235.4641137283.
The spelling of 13054919 in words is "thirteen million, fifty-four thousand, nine hundred nineteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •