Search a number
-
+
342130681 = 23107139021
BaseRepresentation
bin10100011001000…
…111111111111001
3212211210001001201
4110121013333321
51200041140211
653541014201
711323030354
oct2431077771
9784701051
10342130681
1116613a932
12966b4361
1355b5c3b9
143361d29b
15200820c1
hex14647ff9

342130681 has 8 divisors (see below), whose sum is σ = 360345024. Its totient is φ = 324194640.

The previous prime is 342130673. The next prime is 342130687. The reversal of 342130681 is 186031243.

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 342130681 - 23 = 342130673 is a prime.

It is a super-2 number, since 2×3421306812 = 234106805763047522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (342130687) 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, 67050 + ... + 71971.

It is an arithmetic number, because the mean of its divisors is an integer number (45043128).

Almost surely, 2342130681 is an apocalyptic number.

It is an amenable number.

342130681 is a deficient number, since it is larger than the sum of its proper divisors (18214343).

342130681 is a wasteful number, since it uses less digits than its factorization.

342130681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139151.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 342130681 is about 18496.7748810435. The cubic root of 342130681 is about 699.4081262223.

The spelling of 342130681 in words is "three hundred forty-two million, one hundred thirty thousand, six hundred eighty-one".

Divisors: 1 23 107 2461 139021 3197483 14875247 342130681