Base | Representation |
---|---|
bin | 10011011100011… |
… | …00000010100001 |
3 | 102100220111002110 |
4 | 21232030002201 |
5 | 313223243011 |
6 | 24103505533 |
7 | 4020231414 |
oct | 1156140241 |
9 | 370814073 |
10 | 163102881 |
11 | 84081677 |
12 | 467582a9 |
13 | 27a38ba6 |
14 | 17939b7b |
15 | e4bbba6 |
hex | 9b8c0a1 |
163102881 has 8 divisors (see below), whose sum is σ = 219712864. Its totient is φ = 107614080.
The previous prime is 163102861. The next prime is 163102883. The reversal of 163102881 is 188201361.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 163102881 - 26 = 163102817 is a prime.
It is a super-2 number, since 2×1631028812 = 53205099581000322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (163102883) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279955 + ... + 280536.
It is an arithmetic number, because the mean of its divisors is an integer number (27464108).
Almost surely, 2163102881 is an apocalyptic number.
It is an amenable number.
163102881 is a deficient number, since it is larger than the sum of its proper divisors (56609983).
163102881 is an equidigital number, since it uses as much as digits as its factorization.
163102881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 560591.
The product of its (nonzero) digits is 2304, while the sum is 30.
The square root of 163102881 is about 12771.1738301536. The cubic root of 163102881 is about 546.3704599877.
It can be divided in two parts, 16310 and 2881, that added together give a palindrome (19191).
The spelling of 163102881 in words is "one hundred sixty-three million, one hundred two thousand, eight hundred eighty-one".
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