Base | Representation |
---|---|
bin | 10010110100101000… |
… | …11100111011001101 |
3 | 222002020210122122202 |
4 | 21122110130323031 |
5 | 131143420323024 |
6 | 4350422251245 |
7 | 505263111551 |
oct | 113224347315 |
9 | 28066718582 |
10 | 10105245389 |
11 | 4316169478 |
12 | 1b60286b25 |
13 | c50749655 |
14 | 6bc11b861 |
15 | 3e224bbae |
hex | 25a51cecd |
10105245389 has 2 divisors, whose sum is σ = 10105245390. Its totient is φ = 10105245388.
The previous prime is 10105245331. The next prime is 10105245391. The reversal of 10105245389 is 98354250101.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10028420164 + 76825225 = 100142^2 + 8765^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10105245389 is a prime.
It is a super-2 number, since 2×101052453892 (a number of 21 digits) contains 22 as substring.
Together with 10105245391, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10105245289) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5052622694 + 5052622695.
It is an arithmetic number, because the mean of its divisors is an integer number (5052622695).
Almost surely, 210105245389 is an apocalyptic number.
It is an amenable number.
10105245389 is a deficient number, since it is larger than the sum of its proper divisors (1).
10105245389 is an equidigital number, since it uses as much as digits as its factorization.
10105245389 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 43200, while the sum is 38.
The spelling of 10105245389 in words is "ten billion, one hundred five million, two hundred forty-five thousand, three hundred eighty-nine".
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