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142212432212 = 22653154935149
BaseRepresentation
bin1000010001110010000…
…1011000000101010100
3111121002000210002011222
42010130201120011110
54312222340312322
6145155333545512
713163104504664
oct2043441300524
9447060702158
10142212432212
1155348235214
122368a7a5298
1310545057296
146c513c41a4
153a75096e42
hex211c858154

142212432212 has 24 divisors (see below), whose sum is σ = 249420885000. Its totient is φ = 70949471616.

The previous prime is 142212432211. The next prime is 142212432223. The reversal of 142212432212 is 212234212241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14045568196 + 128166864016 = 118514^2 + 358004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142212432211) 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 7 ways as a sum of consecutive naturals, for example, 4028414 + ... + 4063562.

It is an arithmetic number, because the mean of its divisors is an integer number (10392536875).

Almost surely, 2142212432212 is an apocalyptic number.

It is an amenable number.

142212432212 is a deficient number, since it is larger than the sum of its proper divisors (107208452788).

142212432212 is a wasteful number, since it uses less digits than its factorization.

142212432212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37355 (or 37353 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

Adding to 142212432212 its reverse (212234212241), we get a palindrome (354446644453).

The spelling of 142212432212 in words is "one hundred forty-two billion, two hundred twelve million, four hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 653 1306 1549 2612 3098 6196 35149 70298 140596 1011497 2022994 4045988 22952297 45904594 54445801 91809188 108891602 217783204 35553108053 71106216106 142212432212