Search a number
-
+
342130631 = 3137109063
BaseRepresentation
bin10100011001000…
…111111111000111
3212211210000222212
4110121013333013
51200041140011
653541014035
711323030253
oct2431077707
9784700885
10342130631
1116613a897
12966b431b
1355b5c37b
143361d263
152008208b
hex14647fc7

342130631 has 4 divisors (see below), whose sum is σ = 342242832. Its totient is φ = 342018432.

The previous prime is 342130619. The next prime is 342130637. The reversal of 342130631 is 136031243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136031243 = 711915933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-342130631 is a prime.

It is a super-2 number, since 2×3421306312 = 234106737336916322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342130597 and 342130606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342130637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51395 + ... + 57668.

It is an arithmetic number, because the mean of its divisors is an integer number (85560708).

Almost surely, 2342130631 is an apocalyptic number.

342130631 is a deficient number, since it is larger than the sum of its proper divisors (112201).

342130631 is a wasteful number, since it uses less digits than its factorization.

342130631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112200.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 342130631 is about 18496.7735294564. The cubic root of 342130631 is about 699.4080921511.

Adding to 342130631 its reverse (136031243), we get a palindrome (478161874).

The spelling of 342130631 in words is "three hundred forty-two million, one hundred thirty thousand, six hundred thirty-one".

Divisors: 1 3137 109063 342130631