Base | Representation |
---|---|
bin | 100100001011… |
… | …1000011011100 |
3 | 1022200201022000 |
4 | 1020113003130 |
5 | 14324000141 |
6 | 1514322300 |
7 | 320142420 |
oct | 110270334 |
9 | 38621260 |
10 | 18968796 |
11 | a7865a0 |
12 | 6429390 |
13 | 3c11c52 |
14 | 273ab80 |
15 | 19ea5b6 |
hex | 12170dc |
18968796 has 96 divisors (see below), whose sum is σ = 61340160. Its totient is φ = 4924800.
The previous prime is 18968791. The next prime is 18968797. The reversal of 18968796 is 69786981.
It is a Harshad number since it is a multiple of its sum of digits (54).
Its product of digits (1306368) is a multiple of the sum of its prime divisors (2304).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18968791) 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 31 ways as a sum of consecutive naturals, for example, 7176 + ... + 9456.
It is an arithmetic number, because the mean of its divisors is an integer number (638960).
Almost surely, 218968796 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 18968796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30670080).
18968796 is an abundant number, since it is smaller than the sum of its proper divisors (42371364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18968796 is a wasteful number, since it uses less digits than its factorization.
18968796 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2312 (or 2304 counting only the distinct ones).
The product of its digits is 1306368, while the sum is 54.
The square root of 18968796 is about 4355.3181284494. The cubic root of 18968796 is about 266.6940062247.
The spelling of 18968796 in words is "eighteen million, nine hundred sixty-eight thousand, seven hundred ninety-six".
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