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142431041444 = 22319711841623
BaseRepresentation
bin1000010010100110001…
…1010011011110100100
3111121122021010120200012
42010221203103132210
54313144321311234
6145233143305352
713201400606456
oct2045143233644
9447567116605
10142431041444
115544a6785aa
122372ba4b258
131057b428963
146c7244c2d6
153a8937a0ce
hex21298d37a4

142431041444 has 24 divisors (see below), whose sum is σ = 259947330048. Its totient is φ = 68207742720.

The previous prime is 142431041371. The next prime is 142431041449. The reversal of 142431041444 is 444140134241.

It is a self number, because there is not a number n which added to its sum of digits gives 142431041444.

It is not an unprimeable number, because it can be changed into a prime (142431041449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5908784 + ... + 5932839.

It is an arithmetic number, because the mean of its divisors is an integer number (10831138752).

Almost surely, 2142431041444 is an apocalyptic number.

It is an amenable number.

142431041444 is a deficient number, since it is larger than the sum of its proper divisors (117516288604).

142431041444 is a wasteful number, since it uses less digits than its factorization.

142431041444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11841755 (or 11841753 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 142431041444 its reverse (444140134241), we get a palindrome (586571175685).

The spelling of 142431041444 in words is "one hundred forty-two billion, four hundred thirty-one million, forty-one thousand, four hundred forty-four".

Divisors: 1 2 4 31 62 97 124 194 388 3007 6014 12028 11841623 23683246 47366492 367090313 734180626 1148637431 1468361252 2297274862 4594549724 35607760361 71215520722 142431041444