Search a number
-
+
142615101 = 347538367
BaseRepresentation
bin10001000000000…
…10001000111101
3100221100121010210
420200002020331
5243002140401
622052423033
73351131316
oct1040021075
9327317123
10142615101
1173558922
123b917a79
1323714745
1414d2560d
15c7c14d6
hex880223d

142615101 has 4 divisors (see below), whose sum is σ = 190153472. Its totient is φ = 95076732.

The previous prime is 142615093. The next prime is 142615117. The reversal of 142615101 is 101516241.

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 not a de Polignac number, because 142615101 - 23 = 142615093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142615171) 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, 23769181 + ... + 23769186.

It is an arithmetic number, because the mean of its divisors is an integer number (47538368).

Almost surely, 2142615101 is an apocalyptic number.

It is an amenable number.

142615101 is a deficient number, since it is larger than the sum of its proper divisors (47538371).

142615101 is an equidigital number, since it uses as much as digits as its factorization.

142615101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47538370.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 142615101 is about 11942.1564635538. The cubic root of 142615101 is about 522.4625566294.

The spelling of 142615101 in words is "one hundred forty-two million, six hundred fifteen thousand, one hundred one".

Divisors: 1 3 47538367 142615101