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144440211444 = 22312036684287
BaseRepresentation
bin1000011010000101001…
…1101011011111110100
3111210211021201222202220
42012201103223133310
54331303143231234
6150204355002340
713302235353114
oct2064123533764
9453737658686
10144440211444
1156290808781
1223bb08993b0
131080b763b49
146dc3213044
153b5594ea49
hex21a14eb7f4

144440211444 has 12 divisors (see below), whose sum is σ = 337027160064. Its totient is φ = 48146737144.

The previous prime is 144440211431. The next prime is 144440211449. The reversal of 144440211444 is 444112044441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144440211449) 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, 6018342132 + ... + 6018342155.

It is an arithmetic number, because the mean of its divisors is an integer number (28085596672).

Almost surely, 2144440211444 is an apocalyptic number.

It is an amenable number.

144440211444 is an abundant number, since it is smaller than the sum of its proper divisors (192586948620).

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

144440211444 is a wasteful number, since it uses less digits than its factorization.

144440211444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12036684294 (or 12036684292 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 33.

Adding to 144440211444 its reverse (444112044441), we get a palindrome (588552255885).

The spelling of 144440211444 in words is "one hundred forty-four billion, four hundred forty million, two hundred eleven thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 12036684287 24073368574 36110052861 48146737148 72220105722 144440211444