Search a number
-
+
142445413 = 1119681557
BaseRepresentation
bin10000111110110…
…00101101100101
3100221000222101001
420133120231211
5242431223123
622045033301
73346523515
oct1037305545
9327028331
10142445413
1173452390
123b855831
1323685436
1414cbd845
15c78b0ad
hex87d8b65

142445413 has 8 divisors (see below), whose sum is σ = 163573920. Its totient is φ = 122680080.

The previous prime is 142445399. The next prime is 142445437. The reversal of 142445413 is 314544241.

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 142445413 - 213 = 142437221 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 (142449413) 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, 340570 + ... + 340987.

It is an arithmetic number, because the mean of its divisors is an integer number (20446740).

Almost surely, 2142445413 is an apocalyptic number.

It is an amenable number.

142445413 is a deficient number, since it is larger than the sum of its proper divisors (21128507).

142445413 is a wasteful number, since it uses less digits than its factorization.

142445413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681587.

The product of its digits is 7680, while the sum is 28.

The square root of 142445413 is about 11935.0497694815. The cubic root of 142445413 is about 522.2552601820.

Adding to 142445413 its reverse (314544241), we get a palindrome (456989654).

The spelling of 142445413 in words is "one hundred forty-two million, four hundred forty-five thousand, four hundred thirteen".

Divisors: 1 11 19 209 681557 7497127 12949583 142445413