Base | Representation |
---|---|
bin | 101111100101… |
… | …000001100011 |
3 | 212110122221110 |
4 | 233211001203 |
5 | 11143104134 |
6 | 1123154403 |
7 | 211004511 |
oct | 57450143 |
9 | 25418843 |
10 | 12472419 |
11 | 7049793 |
12 | 4215a03 |
13 | 277903b |
14 | 19294b1 |
15 | 11657e9 |
hex | be5063 |
12472419 has 4 divisors (see below), whose sum is σ = 16629896. Its totient is φ = 8314944.
The previous prime is 12472403. The next prime is 12472433. The reversal of 12472419 is 91427421.
12472419 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91427421 = 3 ⋅30475807.
It is not a de Polignac number, because 12472419 - 24 = 12472403 is a prime.
It is a super-2 number, since 2×124724192 = 311122471423122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12472469) 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, 2078734 + ... + 2078739.
It is an arithmetic number, because the mean of its divisors is an integer number (4157474).
Almost surely, 212472419 is an apocalyptic number.
12472419 is a deficient number, since it is larger than the sum of its proper divisors (4157477).
12472419 is an equidigital number, since it uses as much as digits as its factorization.
12472419 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4157476.
The product of its digits is 4032, while the sum is 30.
The square root of 12472419 is about 3531.6312095121. The cubic root of 12472419 is about 231.9086231009.
The spelling of 12472419 in words is "twelve million, four hundred seventy-two thousand, four hundred nineteen".
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