Search a number
-
+
30132222231 = 310044074077
BaseRepresentation
bin11100000100000001…
…010011100100010111
32212202222002111011210
4130010001103210113
5443202322102411
621501554032503
72114463443256
oct340401234427
985688074153
1030132222231
1111862943601
125a0b278733
132ac28ab1c7
14165bc2679d
15bb5545ca6
hex704053917

30132222231 has 4 divisors (see below), whose sum is σ = 40176296312. Its totient is φ = 20088148152.

The previous prime is 30132222221. The next prime is 30132222269. The reversal of 30132222231 is 13222223103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13222223103 = 34407407701.

It is not a de Polignac number, because 30132222231 - 25 = 30132222199 is a prime.

It is a super-2 number, since 2×301322222312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30132222198 and 30132222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30132222221) 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, 5022037036 + ... + 5022037041.

It is an arithmetic number, because the mean of its divisors is an integer number (10044074078).

Almost surely, 230132222231 is an apocalyptic number.

30132222231 is a deficient number, since it is larger than the sum of its proper divisors (10044074081).

30132222231 is a wasteful number, since it uses less digits than its factorization.

30132222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10044074080.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30132222231 its reverse (13222223103), we get a palindrome (43354445334).

The spelling of 30132222231 in words is "thirty billion, one hundred thirty-two million, two hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 3 10044074077 30132222231