Base | Representation |
---|---|
bin | 100101001000… |
… | …1101010111000 |
3 | 1100122020020100 |
4 | 1022101222320 |
5 | 14441033112 |
6 | 1533155400 |
7 | 324333600 |
oct | 112215270 |
9 | 40566210 |
10 | 19471032 |
11 | aa99969 |
12 | 662bb60 |
13 | 4059729 |
14 | 282bc00 |
15 | 1a992dc |
hex | 1291ab8 |
19471032 has 72 divisors (see below), whose sum is σ = 61354800. Its totient is φ = 5562144.
The previous prime is 19471013. The next prime is 19471043. The reversal of 19471032 is 23017491.
It is a tau number, because it is divible by the number of its divisors (72).
It is a junction number, because it is equal to n+sod(n) for n = 19470987 and 19471005.
It is a congruent number.
It is an unprimeable number.
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 17 ways as a sum of consecutive naturals, for example, 769 + ... + 6287.
It is an arithmetic number, because the mean of its divisors is an integer number (852150).
Almost surely, 219471032 is an apocalyptic number.
19471032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 19471032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30677400).
19471032 is an abundant number, since it is smaller than the sum of its proper divisors (41883768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19471032 is a wasteful number, since it uses less digits than its factorization.
19471032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5545 (or 5531 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 19471032 is about 4412.5992340116. The cubic root of 19471032 is about 269.0272817279.
The spelling of 19471032 in words is "nineteen million, four hundred seventy-one thousand, thirty-two".
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