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12244401415 = 52448880283
BaseRepresentation
bin10110110011101001…
…01011110100000111
31011121100000001001201
423121310223310013
5200034031321130
65343000003331
7612266460211
oct133164536407
934540001051
1012244401415
115213711014
122458760547
131201996b4c
1484227b5b1
154b9e4abca
hex2d9d2bd07

12244401415 has 4 divisors (see below), whose sum is σ = 14693281704. Its totient is φ = 9795521128.

The previous prime is 12244401409. The next prime is 12244401443. The reversal of 12244401415 is 51410444221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51410444221 = 67767320063.

It is a cyclic number.

It is not a de Polignac number, because 12244401415 - 213 = 12244393223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224440137 + ... + 1224440146.

It is an arithmetic number, because the mean of its divisors is an integer number (3673320426).

Almost surely, 212244401415 is an apocalyptic number.

12244401415 is a deficient number, since it is larger than the sum of its proper divisors (2448880289).

12244401415 is an equidigital number, since it uses as much as digits as its factorization.

12244401415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448880288.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 12244401415 its reverse (51410444221), we get a palindrome (63654845636).

The spelling of 12244401415 in words is "twelve billion, two hundred forty-four million, four hundred one thousand, four hundred fifteen".

Divisors: 1 5 2448880283 12244401415