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444212132 = 227131220363
BaseRepresentation
bin11010011110100…
…010001110100100
31010221212022111012
4122132202032210
51402204242012
6112025001352
714002512050
oct3236421644
91127768435
10444212132
11208823171
12104923258
1371051420
1442dd2c60
1528ee8622
hex1a7a23a4

444212132 has 24 divisors (see below), whose sum is σ = 956765376. Its totient is φ = 175732128.

The previous prime is 444212129. The next prime is 444212137. The reversal of 444212132 is 231212444.

It is a junction number, because it is equal to n+sod(n) for n = 444212098 and 444212107.

It is not an unprimeable number, because it can be changed into a prime (444212137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609818 + ... + 610545.

It is an arithmetic number, because the mean of its divisors is an integer number (39865224).

Almost surely, 2444212132 is an apocalyptic number.

It is an amenable number.

444212132 is an abundant number, since it is smaller than the sum of its proper divisors (512553244).

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

444212132 is a wasteful number, since it uses less digits than its factorization.

444212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220387 (or 1220385 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 444212132 is about 21076.3405742078. The cubic root of 444212132 is about 763.0098395130.

Adding to 444212132 its reverse (231212444), we get a palindrome (675424576).

The spelling of 444212132 in words is "four hundred forty-four million, two hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 1220363 2440726 4881452 8542541 15864719 17085082 31729438 34170164 63458876 111053033 222106066 444212132