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12205041401 = 71743577343
BaseRepresentation
bin10110101110111101…
…00010011011111001
31011111120221100021102
423113132202123321
5144443442311101
65335032221145
7611311066040
oct132736423371
934446840242
1012205041401
1151a3478283
12244753a7b5
1311c67956b7
1483ad53557
154b677386b
hex2d77a26f9

12205041401 has 4 divisors (see below), whose sum is σ = 13948618752. Its totient is φ = 10461464052.

The previous prime is 12205041307. The next prime is 12205041449. The reversal of 12205041401 is 10414050221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12205041401 - 222 = 12200847097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12205041461) 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, 871788665 + ... + 871788678.

It is an arithmetic number, because the mean of its divisors is an integer number (3487154688).

Almost surely, 212205041401 is an apocalyptic number.

It is an amenable number.

12205041401 is a deficient number, since it is larger than the sum of its proper divisors (1743577351).

12205041401 is an equidigital number, since it uses as much as digits as its factorization.

12205041401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743577350.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 12205041401 its reverse (10414050221), we get a palindrome (22619091622).

The spelling of 12205041401 in words is "twelve billion, two hundred five million, forty-one thousand, four hundred one".

Divisors: 1 7 1743577343 12205041401