Base | Representation |
---|---|
bin | 100110001001… |
… | …0110110110011 |
3 | 1101122010002101 |
4 | 1030102312303 |
5 | 20110001204 |
6 | 1552401231 |
7 | 331666363 |
oct | 114226663 |
9 | 41563071 |
10 | 20000179 |
11 | 10320481 |
12 | 6846217 |
13 | 41b3534 |
14 | 29289a3 |
15 | 1b50ea4 |
hex | 1312db3 |
20000179 has 8 divisors (see below), whose sum is σ = 21968640. Its totient is φ = 18123336.
The previous prime is 20000171. The next prime is 20000213. The reversal of 20000179 is 97100002.
20000179 = T3650 + T3651 + T3652.
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 20000179 - 23 = 20000171 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20000171) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22447 + ... + 23320.
It is an arithmetic number, because the mean of its divisors is an integer number (2746080).
Almost surely, 220000179 is an apocalyptic number.
20000179 is the 3652-nd centered triangular number.
20000179 is a deficient number, since it is larger than the sum of its proper divisors (1968461).
20000179 is a wasteful number, since it uses less digits than its factorization.
20000179 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45809.
The product of its (nonzero) digits is 126, while the sum is 19.
The square root of 20000179 is about 4472.1559677632. The cubic root of 20000179 is about 271.4425714583.
The spelling of 20000179 in words is "twenty million, one hundred seventy-nine", and thus it is an aban number.
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