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13444423 = 43833767
BaseRepresentation
bin110011010010…
…010101000111
3221022001021121
4303102111013
511420210143
61200054411
7222163366
oct63222507
927261247
1013444423
117652aa3
124604407
132a295a5
141add7dd
1512a87ed
hexcd2547

13444423 has 8 divisors (see below), whose sum is σ = 13926528. Its totient is φ = 12970104.

The previous prime is 13444373. The next prime is 13444469. The reversal of 13444423 is 32444431.

13444423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13444423 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 (13444523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686 + ... + 5452.

It is an arithmetic number, because the mean of its divisors is an integer number (1740816).

Almost surely, 213444423 is an apocalyptic number.

13444423 is a deficient number, since it is larger than the sum of its proper divisors (482105).

13444423 is an equidigital number, since it uses as much as digits as its factorization.

13444423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893.

The product of its digits is 4608, while the sum is 25.

The square root of 13444423 is about 3666.6637424231. The cubic root of 13444423 is about 237.7829565663.

Adding to 13444423 its reverse (32444431), we get a palindrome (45888854).

The spelling of 13444423 in words is "thirteen million, four hundred forty-four thousand, four hundred twenty-three".

Divisors: 1 43 83 3569 3767 161981 312661 13444423