Base | Representation |
---|---|
bin | 1111000111011… |
… | …10111101011101 |
3 | 22211121111201221 |
4 | 13203232331131 |
5 | 224430323101 |
6 | 20325533341 |
7 | 3066564223 |
oct | 743567535 |
9 | 284544657 |
10 | 126807901 |
11 | 65641720 |
12 | 36574251 |
13 | 2036b87c |
14 | 12bacb13 |
15 | b1ecaa1 |
hex | 78eef5d |
126807901 has 8 divisors (see below), whose sum is σ = 144350784. Its totient is φ = 110267520.
The previous prime is 126807899. The next prime is 126807907. The reversal of 126807901 is 109708621.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 126807901 - 21 = 126807899 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126807907) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250356 + ... + 250861.
It is an arithmetic number, because the mean of its divisors is an integer number (18043848).
Almost surely, 2126807901 is an apocalyptic number.
126807901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
126807901 is a deficient number, since it is larger than the sum of its proper divisors (17542883).
126807901 is a wasteful number, since it uses less digits than its factorization.
126807901 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 501251.
The product of its (nonzero) digits is 6048, while the sum is 34.
The square root of 126807901 is about 11260.9014292818. The cubic root of 126807901 is about 502.3990057999.
The spelling of 126807901 in words is "one hundred twenty-six million, eight hundred seven thousand, nine hundred one".
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