Base | Representation |
---|---|
bin | 1111000100011… |
… | …10000001001111 |
3 | 22210212100001122 |
4 | 13202032001033 |
5 | 224330121311 |
6 | 20313231155 |
7 | 3063321461 |
oct | 742160117 |
9 | 283770048 |
10 | 126410831 |
11 | 653a0368 |
12 | 364024bb |
13 | 2025cc11 |
14 | 12b08131 |
15 | b1700db |
hex | 788e04f |
126410831 has 4 divisors (see below), whose sum is σ = 129494064. Its totient is φ = 123327600.
The previous prime is 126410807. The next prime is 126410881. The reversal of 126410831 is 138014621.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138014621 = 2437 ⋅56633.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-126410831 is a prime.
It is a super-2 number, since 2×1264108312 = 31959396388221122, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 126410831.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (126410881) 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 3 ways as a sum of consecutive naturals, for example, 1541555 + ... + 1541636.
It is an arithmetic number, because the mean of its divisors is an integer number (32373516).
Almost surely, 2126410831 is an apocalyptic number.
126410831 is a deficient number, since it is larger than the sum of its proper divisors (3083233).
126410831 is an equidigital number, since it uses as much as digits as its factorization.
126410831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3083232.
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 126410831 is about 11243.2571348342. The cubic root of 126410831 is about 501.8740749104.
The spelling of 126410831 in words is "one hundred twenty-six million, four hundred ten thousand, eight hundred thirty-one".
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