Search a number
-
+
142422433 = 599237767
BaseRepresentation
bin10000111110100…
…11000110100001
3100220222210211221
420133103012201
5242430004213
622044335041
73346366516
oct1037230641
9326883757
10142422433
117343709a
123b844481
1323677b3a
1414cb530d
15c78438d
hex87d31a1

142422433 has 4 divisors (see below), whose sum is σ = 142660800. Its totient is φ = 142184068.

The previous prime is 142422431. The next prime is 142422437. The reversal of 142422433 is 334224241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142422433 - 21 = 142422431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142422398 and 142422407.

It is not an unprimeable number, because it can be changed into a prime (142422431) 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 3 ways as a sum of consecutive naturals, for example, 118285 + ... + 119482.

It is an arithmetic number, because the mean of its divisors is an integer number (35665200).

Almost surely, 2142422433 is an apocalyptic number.

It is an amenable number.

142422433 is a deficient number, since it is larger than the sum of its proper divisors (238367).

142422433 is an equidigital number, since it uses as much as digits as its factorization.

142422433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238366.

The product of its digits is 4608, while the sum is 25.

The square root of 142422433 is about 11934.0870199609. The cubic root of 142422433 is about 522.2271744027.

Adding to 142422433 its reverse (334224241), we get a palindrome (476646674).

The spelling of 142422433 in words is "one hundred forty-two million, four hundred twenty-two thousand, four hundred thirty-three".

Divisors: 1 599 237767 142422433