Base | Representation |
---|---|
bin | 11010001110100010… |
… | …001110101110101111 |
3 | 2200200121011012222101 |
4 | 122032202032232233 |
5 | 430133223013204 |
6 | 20534222555531 |
7 | 2014600516606 |
oct | 321642165657 |
9 | 80617135871 |
10 | 28161141679 |
11 | 10a41259610 |
12 | 555b138ba7 |
13 | 286a41b058 |
14 | 1512138a3d |
15 | aec496ea4 |
hex | 68e88ebaf |
28161141679 has 8 divisors (see below), whose sum is σ = 31780599120. Its totient is φ = 24718243200.
The previous prime is 28161141667. The next prime is 28161141703. The reversal of 28161141679 is 97614116182.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28161141679 - 25 = 28161141647 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 (28161141779) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44139402 + ... + 44140039.
It is an arithmetic number, because the mean of its divisors is an integer number (3972574890).
Almost surely, 228161141679 is an apocalyptic number.
28161141679 is a gapful number since it is divisible by the number (29) formed by its first and last digit.
28161141679 is a deficient number, since it is larger than the sum of its proper divisors (3619457441).
28161141679 is a wasteful number, since it uses less digits than its factorization.
28161141679 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 88279481.
The product of its digits is 145152, while the sum is 46.
The spelling of 28161141679 in words is "twenty-eight billion, one hundred sixty-one million, one hundred forty-one thousand, six hundred seventy-nine".
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