Base | Representation |
---|---|
bin | 10000111101001… |
… | …00010111100010 |
3 | 100220122002021012 |
4 | 20132210113202 |
5 | 242402343020 |
6 | 22040300522 |
7 | 3344641445 |
oct | 1036442742 |
9 | 326562235 |
10 | 142231010 |
11 | 73316299 |
12 | 3b771742 |
13 | 2360b97c |
14 | 14c6565c |
15 | c7477c5 |
hex | 87a45e2 |
142231010 has 48 divisors (see below), whose sum is σ = 276590376. Its totient is φ = 52475904.
The previous prime is 142230973. The next prime is 142231013. The reversal of 142231010 is 10132241.
It can be written as a sum of positive squares in 12 ways, for example, as 24790441 + 117440569 = 4979^2 + 10837^2 .
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (142231013) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 905852 + ... + 906008.
Almost surely, 2142231010 is an apocalyptic number.
142231010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
142231010 is a deficient number, since it is larger than the sum of its proper divisors (134359366).
142231010 is a wasteful number, since it uses less digits than its factorization.
142231010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 327 (or 254 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 142231010 is about 11926.0643130917. The cubic root of 142231010 is about 521.9931028678.
Adding to 142231010 its reverse (10132241), we get a palindrome (152363251).
The spelling of 142231010 in words is "one hundred forty-two million, two hundred thirty-one thousand, ten".
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