Base | Representation |
---|---|
bin | 100101110000… |
… | …0010011100000 |
3 | 1101020121001112 |
4 | 1023200103200 |
5 | 20031334440 |
6 | 1544122452 |
7 | 330144614 |
oct | 113402340 |
9 | 41217045 |
10 | 19793120 |
11 | 10199956 |
12 | 6766428 |
13 | 4140209 |
14 | 28b3344 |
15 | 1b0e965 |
hex | 12e04e0 |
19793120 has 24 divisors (see below), whose sum is σ = 46761624. Its totient is φ = 7917184.
The previous prime is 19793101. The next prime is 19793129. The reversal of 19793120 is 2139791.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19793129) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61694 + ... + 62013.
It is an arithmetic number, because the mean of its divisors is an integer number (1948401).
Almost surely, 219793120 is an apocalyptic number.
19793120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
19793120 is an abundant number, since it is smaller than the sum of its proper divisors (26968504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19793120 is a wasteful number, since it uses less digits than its factorization.
19793120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 123722 (or 123714 counting only the distinct ones).
The product of its (nonzero) digits is 3402, while the sum is 32.
The square root of 19793120 is about 4448.9459425801. The cubic root of 19793120 is about 270.5025847007.
The spelling of 19793120 in words is "nineteen million, seven hundred ninety-three thousand, one hundred twenty".
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