Base | Representation |
---|---|
bin | 111011010111101… |
… | …1010100011010000 |
3 | 12010211120020201022 |
4 | 1312233122203100 |
5 | 13034442003013 |
6 | 525402255012 |
7 | 100236630164 |
oct | 16657324320 |
9 | 5124506638 |
10 | 1992141008 |
11 | 93256a030 |
12 | 4771b7468 |
13 | 259955180 |
14 | 14c810ca4 |
15 | b9d5e008 |
hex | 76bda8d0 |
1992141008 has 40 divisors (see below), whose sum is σ = 4534563936. Its totient is φ = 835862400.
The previous prime is 1992141001. The next prime is 1992141029. The reversal of 1992141008 is 8001412991.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1992141001) 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 7 ways as a sum of consecutive naturals, for example, 433058 + ... + 437633.
Almost surely, 21992141008 is an apocalyptic number.
It is an amenable number.
1992141008 is an abundant number, since it is smaller than the sum of its proper divisors (2542422928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1992141008 is a wasteful number, since it uses less digits than its factorization.
1992141008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 870723 (or 870717 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 35.
The square root of 1992141008 is about 44633.4068607809. The cubic root of 1992141008 is about 1258.2685986590.
Adding to 1992141008 its reverse (8001412991), we get a palindrome (9993553999).
The spelling of 1992141008 in words is "one billion, nine hundred ninety-two million, one hundred forty-one thousand, eight".
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