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12404003441 = 28144142361
BaseRepresentation
bin10111000110101011…
…00001001001110001
31012000110022122212212
423203111201021301
5200400411102231
65410500501505
7616245201224
oct134325411161
935013278785
1012404003441
115295811415
1224a20aa895
131228a7840b
148595455bb
154c8e7542b
hex2e3561271

12404003441 has 4 divisors (see below), whose sum is σ = 12448146084. Its totient is φ = 12359860800.

The previous prime is 12404003407. The next prime is 12404003461. The reversal of 12404003441 is 14430040421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9681772816 + 2722230625 = 98396^2 + 52175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12404003441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12404003401) 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, 22070900 + ... + 22071461.

It is an arithmetic number, because the mean of its divisors is an integer number (3112036521).

Almost surely, 212404003441 is an apocalyptic number.

It is an amenable number.

12404003441 is a deficient number, since it is larger than the sum of its proper divisors (44142643).

12404003441 is an equidigital number, since it uses as much as digits as its factorization.

12404003441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44142642.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12404003441 its reverse (14430040421), we get a palindrome (26834043862).

The spelling of 12404003441 in words is "twelve billion, four hundred four million, three thousand, four hundred forty-one".

Divisors: 1 281 44142361 12404003441