Base | Representation |
---|---|
bin | 1100001101001… |
… | …00100010001111 |
3 | 21010122201220221 |
4 | 12012210202033 |
5 | 202202321212 |
6 | 14054252211 |
7 | 2352156616 |
oct | 606444217 |
9 | 233581827 |
10 | 102385807 |
11 | 52880a77 |
12 | 2a357067 |
13 | 1829a724 |
14 | d85287d |
15 | 8ec6807 |
hex | 61a488f |
102385807 has 4 divisors (see below), whose sum is σ = 102435856. Its totient is φ = 102335760.
The previous prime is 102385799. The next prime is 102385837. The reversal of 102385807 is 708583201.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 102385807 - 23 = 102385799 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 (102385837) 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, 21819 + ... + 26092.
It is an arithmetic number, because the mean of its divisors is an integer number (25608964).
Almost surely, 2102385807 is an apocalyptic number.
102385807 is a deficient number, since it is larger than the sum of its proper divisors (50049).
102385807 is an equidigital number, since it uses as much as digits as its factorization.
102385807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50048.
The product of its (nonzero) digits is 13440, while the sum is 34.
The square root of 102385807 is about 10118.5872037553. The cubic root of 102385807 is about 467.8212222280.
The spelling of 102385807 in words is "one hundred two million, three hundred eighty-five thousand, eight hundred seven".
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