Base | Representation |
---|---|
bin | 1100001010010… |
… | …11111111000001 |
3 | 21002222022101112 |
4 | 12011023333001 |
5 | 202104214410 |
6 | 14042413105 |
7 | 2346116312 |
oct | 605137701 |
9 | 232868345 |
10 | 102023105 |
11 | 52653518 |
12 | 2a201195 |
13 | 181a1602 |
14 | d79a609 |
15 | 8e54105 |
hex | 614bfc1 |
102023105 has 8 divisors (see below), whose sum is σ = 122482152. Its totient is φ = 81582208.
The previous prime is 102023087. The next prime is 102023143. The reversal of 102023105 is 501320201.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 16516096 + 85507009 = 4064^2 + 9247^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 102023105 - 28 = 102022849 is a prime.
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 102023105.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18197 + ... + 23133.
It is an arithmetic number, because the mean of its divisors is an integer number (15310269).
Almost surely, 2102023105 is an apocalyptic number.
It is an amenable number.
102023105 is a deficient number, since it is larger than the sum of its proper divisors (20459047).
102023105 is an equidigital number, since it uses as much as digits as its factorization.
102023105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9075.
The product of its (nonzero) digits is 60, while the sum is 14.
The square root of 102023105 is about 10100.6487415413. The cubic root of 102023105 is about 467.2681493078.
Adding to 102023105 its reverse (501320201), we get a palindrome (603343306).
The spelling of 102023105 in words is "one hundred two million, twenty-three thousand, one hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •