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12402404341 = 33133743557
BaseRepresentation
bin10111000110011110…
…11010101111110101
31012000100022102022221
423203033122233311
5200400003414331
65410402322341
7616225461145
oct134317325765
935010272287
1012402404341
115294919a48
1224a16593b1
1312286385c2
1485924a925
154c8c5b711
hex2e33dabf5

12402404341 has 4 divisors (see below), whose sum is σ = 12406151212. Its totient is φ = 12398657472.

The previous prime is 12402404327. The next prime is 12402404369. The reversal of 12402404341 is 14340420421.

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 4858787025 + 7543617316 = 69705^2 + 86854^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402404341 - 25 = 12402404309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402404041) 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, 1868466 + ... + 1875091.

It is an arithmetic number, because the mean of its divisors is an integer number (3101537803).

Almost surely, 212402404341 is an apocalyptic number.

It is an amenable number.

12402404341 is a deficient number, since it is larger than the sum of its proper divisors (3746871).

12402404341 is an equidigital number, since it uses as much as digits as its factorization.

12402404341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746870.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12402404341 its reverse (14340420421), we get a palindrome (26742824762).

The spelling of 12402404341 in words is "twelve billion, four hundred two million, four hundred four thousand, three hundred forty-one".

Divisors: 1 3313 3743557 12402404341