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443130012 = 223213946859
BaseRepresentation
bin11010011010011…
…010000010011100
31010212211100002200
4122122122002130
51401420130022
6111545451500
713660354143
oct3232320234
91125740080
10443130012
11208154156
121044a0b90
1370a62a10
1442bd075a
1528d82bac
hex1a69a09c

443130012 has 36 divisors (see below), whose sum is σ = 1206299640. Its totient is φ = 136347552.

The previous prime is 443130001. The next prime is 443130013. The reversal of 443130012 is 210031344.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443130013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 472962 + ... + 473897.

Almost surely, 2443130012 is an apocalyptic number.

It is an amenable number.

443130012 is an abundant number, since it is smaller than the sum of its proper divisors (763169628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

443130012 is a wasteful number, since it uses less digits than its factorization.

443130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946882 (or 946877 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 443130012 is about 21050.6534815430. The cubic root of 443130012 is about 762.3897607178.

Adding to 443130012 its reverse (210031344), we get a palindrome (653161356).

It can be divided in two parts, 4431 and 30012, that added together give a palindrome (34443).

The spelling of 443130012 in words is "four hundred forty-three million, one hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 946859 1893718 2840577 3787436 5681154 8521731 11362308 12309167 17043462 24618334 34086924 36927501 49236668 73855002 110782503 147710004 221565006 443130012