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142378753 = 11312391747
BaseRepresentation
bin10000111110010…
…00011100000001
3100220220120221011
420133020130001
5242422110003
622043400521
73346125256
oct1037103401
9326816834
10142378753
11734072a0
123b823141
1323660caa
1414ca342d
15c77646d
hex87c8701

142378753 has 16 divisors (see below), whose sum is σ = 161095680. Its totient is φ = 124664400.

The previous prime is 142378721. The next prime is 142378787. The reversal of 142378753 is 357873241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142378753 - 25 = 142378721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142372753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80626 + ... + 82372.

It is an arithmetic number, because the mean of its divisors is an integer number (10068480).

Almost surely, 2142378753 is an apocalyptic number.

It is an amenable number.

142378753 is a deficient number, since it is larger than the sum of its proper divisors (18716927).

142378753 is a wasteful number, since it uses less digits than its factorization.

142378753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028.

The product of its digits is 141120, while the sum is 40.

The square root of 142378753 is about 11932.2568276081. The cubic root of 142378753 is about 522.1737810927.

The spelling of 142378753 in words is "one hundred forty-two million, three hundred seventy-eight thousand, seven hundred fifty-three".

Divisors: 1 11 31 239 341 1747 2629 7409 19217 54157 81499 417533 595727 4592863 12943523 142378753