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142655368 = 2317831921
BaseRepresentation
bin10001000000010…
…11111110001000
3100221102122101011
420200023332020
5243004432433
622053333304
73351356602
oct1040137610
9327378334
10142655368
11735860a9
123b937234
1323729b7b
1414d36172
15c7cd3cd
hex880bf88

142655368 has 8 divisors (see below), whose sum is σ = 267478830. Its totient is φ = 71327680.

The previous prime is 142655353. The next prime is 142655369. The reversal of 142655368 is 863556241.

It can be written as a sum of positive squares in only one way, i.e., 142134084 + 521284 = 11922^2 + 722^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 142655368.

It is not an unprimeable number, because it can be changed into a prime (142655369) 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 as a sum of consecutive naturals, namely, 8915953 + ... + 8915968.

Almost surely, 2142655368 is an apocalyptic number.

It is an amenable number.

142655368 is a deficient number, since it is larger than the sum of its proper divisors (124823462).

142655368 is a wasteful number, since it uses less digits than its factorization.

142655368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17831927 (or 17831923 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 142655368 is about 11943.8422628566. The cubic root of 142655368 is about 522.5117239801.

The spelling of 142655368 in words is "one hundred forty-two million, six hundred fifty-five thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 17831921 35663842 71327684 142655368