Base | Representation |
---|---|
bin | 10001110100010101… |
… | …101101001000101110 |
3 | 1211101022200212201100 |
4 | 101310111231020232 |
5 | 303140204404032 |
6 | 12442231023530 |
7 | 1245046622040 |
oct | 216425551056 |
9 | 54338625640 |
10 | 19131716142 |
11 | 812839a560 |
12 | 385b20aba6 |
13 | 1a5b8373c6 |
14 | cd6c63a90 |
15 | 76e90697c |
hex | 47456d22e |
19131716142 has 48 divisors (see below), whose sum is σ = 51680483712. Its totient is φ = 4969276560.
The previous prime is 19131716129. The next prime is 19131716231. The reversal of 19131716142 is 24161713191.
19131716142 is a `hidden beast` number, since 1 + 9 + 1 + 31 + 7 + 1 + 614 + 2 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 19131716097 and 19131716106.
It is a congruent number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 6900388 + ... + 6903159.
It is an arithmetic number, because the mean of its divisors is an integer number (1076676744).
Almost surely, 219131716142 is an apocalyptic number.
19131716142 is an abundant number, since it is smaller than the sum of its proper divisors (32548767570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19131716142 is a wasteful number, since it uses less digits than its factorization.
19131716142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13803573 (or 13803570 counting only the distinct ones).
The product of its digits is 9072, while the sum is 36.
The spelling of 19131716142 in words is "nineteen billion, one hundred thirty-one million, seven hundred sixteen thousand, one hundred forty-two".
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