Base | Representation |
---|---|
bin | 10001000010110… |
… | …01110001100010 |
3 | 100222000211112012 |
4 | 20201121301202 |
5 | 243100132200 |
6 | 22104232522 |
7 | 3354154652 |
oct | 1041316142 |
9 | 328024465 |
10 | 142974050 |
11 | 7378357a |
12 | 3ba6b742 |
13 | 2380bc3b |
14 | 14dba362 |
15 | c842a35 |
hex | 8859c62 |
142974050 has 54 divisors (see below), whose sum is σ = 283853763. Its totient is φ = 53570880.
The previous prime is 142974017. The next prime is 142974053. The reversal of 142974050 is 50479241.
It is a happy number.
142974050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 5 ways, for example, as 13446889 + 129527161 = 3667^2 + 11381^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=8455.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 142973998 and 142974016.
It is not an unprimeable number, because it can be changed into a prime (142974053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1606406 + ... + 1606494.
Almost surely, 2142974050 is an apocalyptic number.
142974050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
142974050 is a deficient number, since it is larger than the sum of its proper divisors (140879713).
142974050 is an equidigital number, since it uses as much as digits as its factorization.
142974050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 228 (or 115 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 32.
The square root of 142974050 is about 11957.1756698645. The cubic root of 142974050 is about 522.9005193520.
Multiplying 142974050 by its sum of digits (32), we get a square (4575169600 = 676402).
The spelling of 142974050 in words is "one hundred forty-two million, nine hundred seventy-four thousand, fifty".
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