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142213101444 = 223219207913891
BaseRepresentation
bin1000010001110010001…
…1111011011110000100
3111121002002001002012100
42010130203323132010
54312223023221234
6145155400152100
713163113263051
oct2043443733604
9447062032170
10142213101444
1155348651aa7
122368aa68630
131054522ca8b
146c5151a028
153a7517a399
hex211c8fb784

142213101444 has 36 divisors (see below), whose sum is σ = 378403283440. Its totient is φ = 44909400240.

The previous prime is 142213101427. The next prime is 142213101449. The reversal of 142213101444 is 444101312241.

142213101444 is a `hidden beast` number, since 1 + 4 + 2 + 213 + 1 + 0 + 1 + 444 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (142213101449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103956262 + ... + 103957629.

Almost surely, 2142213101444 is an apocalyptic number.

It is an amenable number.

142213101444 is an abundant number, since it is smaller than the sum of its proper divisors (236190181996).

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

142213101444 is a wasteful number, since it uses less digits than its factorization.

142213101444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207913920 (or 207913915 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 142213101444 its reverse (444101312241), we get a palindrome (586314413685).

The spelling of 142213101444 in words is "one hundred forty-two billion, two hundred thirteen million, one hundred one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 207913891 415827782 623741673 831655564 1247483346 1871225019 2494966692 3742450038 3950363929 7484900076 7900727858 11851091787 15801455716 23702183574 35553275361 47404367148 71106550722 142213101444