Base | Representation |
---|---|
bin | 101111100110110001… |
… | …0100101011001011101 |
3 | 100202212202202100220022 |
4 | 1133031202211121131 |
5 | 3133333024040130 |
6 | 114544240201525 |
7 | 10246264062152 |
oct | 1371542453135 |
9 | 322782670808 |
10 | 102232643165 |
11 | 3a3a1730a44 |
12 | 179916092a5 |
13 | 9843230183 |
14 | 4d3b798229 |
15 | 29d52537e5 |
hex | 17cd8a565d |
102232643165 has 4 divisors (see below), whose sum is σ = 122679171804. Its totient is φ = 81786114528.
The previous prime is 102232643143. The next prime is 102232643221. The reversal of 102232643165 is 561346232201.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 67480972441 + 34751670724 = 259771^2 + 186418^2 .
It is a cyclic number.
It is not a de Polignac number, because 102232643165 - 214 = 102232626781 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10223264312 + ... + 10223264321.
It is an arithmetic number, because the mean of its divisors is an integer number (30669792951).
Almost surely, 2102232643165 is an apocalyptic number.
It is an amenable number.
102232643165 is a deficient number, since it is larger than the sum of its proper divisors (20446528639).
102232643165 is an equidigital number, since it uses as much as digits as its factorization.
102232643165 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20446528638.
The product of its (nonzero) digits is 51840, while the sum is 35.
Adding to 102232643165 its reverse (561346232201), we get a palindrome (663578875366).
The spelling of 102232643165 in words is "one hundred two billion, two hundred thirty-two million, six hundred forty-three thousand, one hundred sixty-five".
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