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12423254214 = 2378917319211
BaseRepresentation
bin10111001000111101…
…11101000011000110
31012001210112200222110
423210132331003012
5200420323113324
65412425241450
7616600630020
oct134436750306
935053480873
1012423254214
1152a566a848
1224a8633286
13122ca587c7
1485bd17010
154ca9c9329
hex2e47bd0c6

12423254214 has 64 divisors (see below), whose sum is σ = 28882552320. Its totient is φ = 3489150720.

The previous prime is 12423254209. The next prime is 12423254231. The reversal of 12423254214 is 41245232421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637069 + ... + 656279.

It is an arithmetic number, because the mean of its divisors is an integer number (451289880).

Almost surely, 212423254214 is an apocalyptic number.

12423254214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423254214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14441276160).

12423254214 is an abundant number, since it is smaller than the sum of its proper divisors (16459298106).

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

12423254214 is a wasteful number, since it uses less digits than its factorization.

12423254214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19485.

The product of its digits is 15360, while the sum is 30.

Adding to 12423254214 its reverse (41245232421), we get a palindrome (53668486635).

The spelling of 12423254214 in words is "twelve billion, four hundred twenty-three million, two hundred fifty-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 89 173 178 267 346 519 534 623 1038 1211 1246 1869 2422 3633 3738 7266 15397 19211 30794 38422 46191 57633 92382 107779 115266 134477 215558 268954 323337 403431 646674 806862 1709779 3323503 3419558 5129337 6647006 9970509 10258674 11968453 19941018 23264521 23936906 35905359 46529042 69793563 71810718 139587126 295791767 591583534 887375301 1774750602 2070542369 4141084738 6211627107 12423254214