Base | Representation |
---|---|
bin | 101100010000… |
… | …1110001011101 |
3 | 1121200001000201 |
4 | 1120201301131 |
5 | 21420111010 |
6 | 2145223501 |
7 | 401153623 |
oct | 130416135 |
9 | 47601021 |
10 | 23207005 |
11 | 12110848 |
12 | 7931b91 |
13 | 4a67073 |
14 | 3121513 |
15 | 208623a |
hex | 1621c5d |
23207005 has 4 divisors (see below), whose sum is σ = 27848412. Its totient is φ = 18565600.
The previous prime is 23206987. The next prime is 23207021. The reversal of 23207005 is 50070232.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 10830681 + 12376324 = 3291^2 + 3518^2 .
It is not a de Polignac number, because 23207005 - 27 = 23206877 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2320696 + ... + 2320705.
It is an arithmetic number, because the mean of its divisors is an integer number (6962103).
Almost surely, 223207005 is an apocalyptic number.
It is an amenable number.
23207005 is a deficient number, since it is larger than the sum of its proper divisors (4641407).
23207005 is an equidigital number, since it uses as much as digits as its factorization.
23207005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4641406.
The product of its (nonzero) digits is 420, while the sum is 19.
The square root of 23207005 is about 4817.3649436180. The cubic root of 23207005 is about 285.2373318050.
Adding to 23207005 its reverse (50070232), we get a palindrome (73277237).
The spelling of 23207005 in words is "twenty-three million, two hundred seven thousand, five".
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