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12423442441 = 199509122651
BaseRepresentation
bin10111001000111111…
…01011000000001001
31012001210220021011211
423210133223000021
5200420400124231
65412433253121
7616602342544
oct134437530011
935053807154
1012423442441
1152a5789203
1224a87041a1
13122cac3397
1485bd6585b
154caa14eb1
hex2e47eb009

12423442441 has 8 divisors (see below), whose sum is σ = 12510504000. Its totient is φ = 12336627600.

The previous prime is 12423442397. The next prime is 12423442483. The reversal of 12423442441 is 14424432421.

It is a happy number.

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 12423442441 - 27 = 12423442313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423440441) 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, 39966 + ... + 162616.

It is an arithmetic number, because the mean of its divisors is an integer number (1563813000).

Almost surely, 212423442441 is an apocalyptic number.

It is an amenable number.

12423442441 is a deficient number, since it is larger than the sum of its proper divisors (87061559).

12423442441 is a wasteful number, since it uses less digits than its factorization.

12423442441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123359.

The product of its digits is 24576, while the sum is 31.

Adding to 12423442441 its reverse (14424432421), we get a palindrome (26847874862).

The spelling of 12423442441 in words is "twelve billion, four hundred twenty-three million, four hundred forty-two thousand, four hundred forty-one".

Divisors: 1 199 509 101291 122651 24407549 62429359 12423442441