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12432306258 = 2321642142061
BaseRepresentation
bin10111001010000010…
…11111000001010010
31012002102120121001100
423211001133001102
5200430132300013
65413351245230
7620040600561
oct134501370122
935072517040
1012432306258
1152aa792779
1224ab679816
1312318a7a48
1485d1d1bd8
154cb6b6473
hex2e505f052

12432306258 has 24 divisors (see below), whose sum is σ = 26938944396. Its totient is φ = 4143751200.

The previous prime is 12432306181. The next prime is 12432306259. The reversal of 12432306258 is 85260323421.

12432306258 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 23 + 0 + 625 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12427121529 + 5184729 = 111477^2 + 2277^2 .

It is not an unprimeable number, because it can be changed into a prime (12432306259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274548 + ... + 316608.

Almost surely, 212432306258 is an apocalyptic number.

12432306258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12432306258 is an abundant number, since it is smaller than the sum of its proper divisors (14506638138).

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

12432306258 is a wasteful number, since it uses less digits than its factorization.

12432306258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58490 (or 58487 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 12432306258 its reverse (85260323421), we get a palindrome (97692629679).

The spelling of 12432306258 in words is "twelve billion, four hundred thirty-two million, three hundred six thousand, two hundred fifty-eight".

Divisors: 1 2 3 6 9 18 16421 32842 42061 49263 84122 98526 126183 147789 252366 295578 378549 757098 690683681 1381367362 2072051043 4144102086 6216153129 12432306258