Base | Representation |
---|---|
bin | 11010011110000… |
… | …111001100101100 |
3 | 1010221122200121202 |
4 | 122132013030230 |
5 | 1402142221140 |
6 | 112022345032 |
7 | 14001541220 |
oct | 3236071454 |
9 | 1127580552 |
10 | 444101420 |
11 | 208757a74 |
12 | 10488b178 |
13 | 71012c09 |
14 | 42da4780 |
15 | 28ec5915 |
hex | 1a78732c |
444101420 has 48 divisors (see below), whose sum is σ = 1090645248. Its totient is φ = 148720320.
The previous prime is 444101341. The next prime is 444101431. The reversal of 444101420 is 24101444.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 444101392 and 444101401.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30866 + ... + 42905.
It is an arithmetic number, because the mean of its divisors is an integer number (22721776).
Almost surely, 2444101420 is an apocalyptic number.
It is an amenable number.
444101420 is an abundant number, since it is smaller than the sum of its proper divisors (646543828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
444101420 is a wasteful number, since it uses less digits than its factorization.
444101420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73830 (or 73828 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 20.
The square root of 444101420 is about 21073.7139583890. The cubic root of 444101420 is about 762.9464453535.
Adding to 444101420 its reverse (24101444), we get a palindrome (468202864).
The spelling of 444101420 in words is "four hundred forty-four million, one hundred one thousand, four hundred twenty".
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