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13224634897 = 29456021893
BaseRepresentation
bin11000101000011111…
…11110101000010001
31021010122111001121111
430110033332220101
5204041001304042
610024133453321
7645501353605
oct142417765021
937118431544
1013224634897
115676a63a31
122690aa1241
131329aa2c66
148d6521505
15526025517
hex3143fea11

13224634897 has 4 divisors (see below), whose sum is σ = 13680656820. Its totient is φ = 12768612976.

The previous prime is 13224634877. The next prime is 13224634903. The reversal of 13224634897 is 79843642231.

13224634897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 8469704961 + 4754929936 = 92031^2 + 68956^2 .

It is a cyclic number.

It is not a de Polignac number, because 13224634897 - 27 = 13224634769 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13224634897.

It is not an unprimeable number, because it can be changed into a prime (13224634807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228010918 + ... + 228010975.

It is an arithmetic number, because the mean of its divisors is an integer number (3420164205).

Almost surely, 213224634897 is an apocalyptic number.

It is an amenable number.

13224634897 is a deficient number, since it is larger than the sum of its proper divisors (456021923).

13224634897 is an equidigital number, since it uses as much as digits as its factorization.

13224634897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456021922.

The product of its digits is 1741824, while the sum is 49.

The spelling of 13224634897 in words is "thirteen billion, two hundred twenty-four million, six hundred thirty-four thousand, eight hundred ninety-seven".

Divisors: 1 29 456021893 13224634897