Base | Representation |
---|---|
bin | 10000111100010… |
… | …11110011101111 |
3 | 100220102222021110 |
4 | 20132023303233 |
5 | 242341133130 |
6 | 22034203103 |
7 | 3344042250 |
oct | 1036136357 |
9 | 326388243 |
10 | 142130415 |
11 | 73257759 |
12 | 3b723493 |
13 | 235a4c4b |
14 | 14c3ab27 |
15 | c727ab0 |
hex | 878bcef |
142130415 has 32 divisors (see below), whose sum is σ = 261904896. Its totient is φ = 64471680.
The previous prime is 142130413. The next prime is 142130423. The reversal of 142130415 is 514031241.
It is not a de Polignac number, because 142130415 - 21 = 142130413 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 142130391 and 142130400.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142130413) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8589 + ... + 18921.
It is an arithmetic number, because the mean of its divisors is an integer number (8184528).
Almost surely, 2142130415 is an apocalyptic number.
142130415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
142130415 is a deficient number, since it is larger than the sum of its proper divisors (119774481).
142130415 is a wasteful number, since it uses less digits than its factorization.
142130415 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10479.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 142130415 is about 11921.8461238182. The cubic root of 142130415 is about 521.8700113786.
Adding to 142130415 its reverse (514031241), we get a palindrome (656161656).
The spelling of 142130415 in words is "one hundred forty-two million, one hundred thirty thousand, four hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •