Base | Representation |
---|---|
bin | 100110000000… |
… | …1011100001100 |
3 | 1101111111020100 |
4 | 1030001130030 |
5 | 20100210334 |
6 | 1551051100 |
7 | 331251405 |
oct | 114013414 |
9 | 41444210 |
10 | 19928844 |
11 | 10281921 |
12 | 6810a90 |
13 | 4189c20 |
14 | 290a9ac |
15 | 1b39c99 |
hex | 130170c |
19928844 has 72 divisors (see below), whose sum is σ = 54934880. Its totient is φ = 6054912.
The previous prime is 19928837. The next prime is 19928861. The reversal of 19928844 is 44882991.
It is a self number, because there is not a number n which added to its sum of digits gives 19928844.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45177 + ... + 45615.
Almost surely, 219928844 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 19928844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27467440).
19928844 is an abundant number, since it is smaller than the sum of its proper divisors (35006036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19928844 is a wasteful number, since it uses less digits than its factorization.
19928844 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 559 (or 554 counting only the distinct ones).
The product of its digits is 165888, while the sum is 45.
The square root of 19928844 is about 4464.1733837296. The cubic root of 19928844 is about 271.1194673039.
The spelling of 19928844 in words is "nineteen million, nine hundred twenty-eight thousand, eight hundred forty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •