Base | Representation |
---|---|
bin | 10010100000000101110100… |
… | …110010011011100110100101 |
3 | 101200002220111012120100202221 |
4 | 102200011310302123212211 |
5 | 41131131443342100122 |
6 | 445020525323432341 |
7 | 23065540204554460 |
oct | 2240056462334645 |
9 | 350086435510687 |
10 | 81370114800037 |
11 | 23a21965543368 |
12 | 91620a69856b1 |
13 | 36532270ca0cb |
14 | 16144980ba2d7 |
15 | 9619540996c7 |
hex | 4a0174c9b9a5 |
81370114800037 has 4 divisors (see below), whose sum is σ = 92994416914336. Its totient is φ = 69745812685740.
The previous prime is 81370114799903. The next prime is 81370114800047. The reversal of 81370114800037 is 73000841107318.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-81370114800037 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 81370114799966 and 81370114800002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (81370114800047) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5812151057139 + ... + 5812151057152.
It is an arithmetic number, because the mean of its divisors is an integer number (23248604228584).
Almost surely, 281370114800037 is an apocalyptic number.
It is an amenable number.
81370114800037 is a deficient number, since it is larger than the sum of its proper divisors (11624302114299).
81370114800037 is a wasteful number, since it uses less digits than its factorization.
81370114800037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11624302114298.
The product of its (nonzero) digits is 112896, while the sum is 43.
The spelling of 81370114800037 in words is "eighty-one trillion, three hundred seventy billion, one hundred fourteen million, eight hundred thousand, thirty-seven".
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