Search a number
-
+
30340142143 = 43862981769
BaseRepresentation
bin11100010000011010…
…011101010000111111
32220022110022220200021
4130100122131100333
5444114034022033
621534342313011
72122566644623
oct342032352077
986273286607
1030340142143
111195a245943
125a68a28767
132b269a933c
14167b6ab183
15bc8916b2d
hex71069d43f

30340142143 has 8 divisors (see below), whose sum is σ = 31049704400. Its totient is φ = 29630760768.

The previous prime is 30340142111. The next prime is 30340142159. The reversal of 30340142143 is 34124104303.

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 30340142143 - 25 = 30340142111 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 (30340142243) 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, 330163 + ... + 411931.

It is an arithmetic number, because the mean of its divisors is an integer number (3881213050).

Almost surely, 230340142143 is an apocalyptic number.

30340142143 is a deficient number, since it is larger than the sum of its proper divisors (709562257).

30340142143 is an equidigital number, since it uses as much as digits as its factorization.

30340142143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90441.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30340142143 its reverse (34124104303), we get a palindrome (64464246446).

The spelling of 30340142143 in words is "thirty billion, three hundred forty million, one hundred forty-two thousand, one hundred forty-three".

Divisors: 1 43 8629 81769 371047 3516067 705584701 30340142143