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13444033 = 53253661
BaseRepresentation
bin110011010010…
…001111000001
3221022000202011
4303102033001
511420202113
61200052521
7222162301
oct63221701
927260664
1013444033
117652779
124604141
132a29365
141add601
1512a863d
hexcd23c1

13444033 has 4 divisors (see below), whose sum is σ = 13697748. Its totient is φ = 13190320.

The previous prime is 13444027. The next prime is 13444043. The reversal of 13444033 is 33044431.

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 8573184 + 4870849 = 2928^2 + 2207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13444033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13443995 and 13444013.

It is not an unprimeable number, because it can be changed into a prime (13444043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126778 + ... + 126883.

It is an arithmetic number, because the mean of its divisors is an integer number (3424437).

Almost surely, 213444033 is an apocalyptic number.

It is an amenable number.

13444033 is a deficient number, since it is larger than the sum of its proper divisors (253715).

13444033 is an equidigital number, since it uses as much as digits as its factorization.

13444033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253714.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 13444033 is about 3666.6105601768. The cubic root of 13444033 is about 237.7806573167.

Adding to 13444033 its reverse (33044431), we get a palindrome (46488464).

The spelling of 13444033 in words is "thirteen million, four hundred forty-four thousand, thirty-three".

Divisors: 1 53 253661 13444033