Search a number
-
+
142030607 = 281505447
BaseRepresentation
bin10000111011100…
…11011100001111
3100220020220100212
420131303130033
5242324434412
622032113035
73343145255
oct1035633417
9326226325
10142030607
1173199774
123b69577b
132356b6a4
1414c125d5
15c708222
hex877370f

142030607 has 4 divisors (see below), whose sum is σ = 142536336. Its totient is φ = 141524880.

The previous prime is 142030517. The next prime is 142030621. The reversal of 142030607 is 706030241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142030607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142030657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252443 + ... + 253004.

It is an arithmetic number, because the mean of its divisors is an integer number (35634084).

Almost surely, 2142030607 is an apocalyptic number.

142030607 is a deficient number, since it is larger than the sum of its proper divisors (505729).

142030607 is an equidigital number, since it uses as much as digits as its factorization.

142030607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505728.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 142030607 is about 11917.6594598101. The cubic root of 142030607 is about 521.7478254760.

Adding to 142030607 its reverse (706030241), we get a palindrome (848060848).

The spelling of 142030607 in words is "one hundred forty-two million, thirty thousand, six hundred seven".

Divisors: 1 281 505447 142030607