Base | Representation |
---|---|
bin | 101100001000… |
… | …1111010011101 |
3 | 1121112201220210 |
4 | 1120101322131 |
5 | 21411021140 |
6 | 2144003033 |
7 | 400463343 |
oct | 130217235 |
9 | 47481823 |
10 | 23142045 |
11 | 12076a63 |
12 | 7900479 |
13 | 4a43624 |
14 | 3105993 |
15 | 2071d80 |
hex | 1611e9d |
23142045 has 16 divisors (see below), whose sum is σ = 37170432. Its totient is φ = 12294720.
The previous prime is 23142017. The next prime is 23142107. The reversal of 23142045 is 54024132.
It is not a de Polignac number, because 23142045 - 211 = 23139997 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219 + ... + 6911.
It is an arithmetic number, because the mean of its divisors is an integer number (2323152).
Almost surely, 223142045 is an apocalyptic number.
It is an amenable number.
23142045 is a deficient number, since it is larger than the sum of its proper divisors (14028387).
23142045 is a wasteful number, since it uses less digits than its factorization.
23142045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5972.
The product of its (nonzero) digits is 960, while the sum is 21.
The square root of 23142045 is about 4810.6179436742. The cubic root of 23142045 is about 284.9709419435.
Adding to 23142045 its reverse (54024132), we get a palindrome (77166177).
The spelling of 23142045 in words is "twenty-three million, one hundred forty-two thousand, forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •