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142944361 = 722878929
BaseRepresentation
bin10001000010100…
…10100001101001
3100221222022210121
420201102201221
5243043204421
622103443241
73354002260
oct1041224151
9327868717
10142944361
117376323a
123ba56521
13237cb581
1414dad5d7
15c838d41
hex8852869

142944361 has 8 divisors (see below), whose sum is σ = 163454720. Its totient is φ = 122456448.

The previous prime is 142944359. The next prime is 142944377. The reversal of 142944361 is 163449241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142944361 - 21 = 142944359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142944331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11545 + ... + 20473.

It is an arithmetic number, because the mean of its divisors is an integer number (20431840).

Almost surely, 2142944361 is an apocalyptic number.

It is an amenable number.

142944361 is a deficient number, since it is larger than the sum of its proper divisors (20510359).

142944361 is an equidigital number, since it uses as much as digits as its factorization.

142944361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223.

The product of its digits is 20736, while the sum is 34.

The square root of 142944361 is about 11955.9341333080. The cubic root of 142944361 is about 522.8643228809.

The spelling of 142944361 in words is "one hundred forty-two million, nine hundred forty-four thousand, three hundred sixty-one".

Divisors: 1 7 2287 8929 16009 62503 20420623 142944361