Search a number
-
+
12345122430 = 2325137168027
BaseRepresentation
bin10110111111101001…
…11001111001111110
31011212100112012022200
423133310321321332
5200240322404210
65400554452330
7614631544404
oct133764717176
934770465280
1012345122430
115265555223
1224864340a6
131219800894
148517b9474
154c3be40c0
hex2dfd39e7e

12345122430 has 24 divisors (see below), whose sum is σ = 32097318552. Its totient is φ = 3292032624.

The previous prime is 12345122411. The next prime is 12345122501. The reversal of 12345122430 is 3422154321.

12345122430 is a `hidden beast` number, since 123 + 4 + 512 + 24 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12345122394 and 12345122403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68583924 + ... + 68584103.

It is an arithmetic number, because the mean of its divisors is an integer number (1337388273).

Almost surely, 212345122430 is an apocalyptic number.

12345122430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12345122430 is an abundant number, since it is smaller than the sum of its proper divisors (19752196122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12345122430 is a wasteful number, since it uses less digits than its factorization.

12345122430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137168040 (or 137168037 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12345122430 its reverse (3422154321), we get a palindrome (15767276751).

The spelling of 12345122430 in words is "twelve billion, three hundred forty-five million, one hundred twenty-two thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 137168027 274336054 411504081 685840135 823008162 1234512243 1371680270 2057520405 2469024486 4115040810 6172561215 12345122430