Search a number
-
+
13449105 = 33599623
BaseRepresentation
bin110011010011…
…011110010001
3221022021201000
4303103132101
511420332410
61200132213
7222213135
oct63233621
927267630
1013449105
11765656a
124607069
132a2b767
141b013c5
1512a9dc0
hexcd3791

13449105 has 16 divisors (see below), whose sum is σ = 23909760. Its totient is φ = 7172784.

The previous prime is 13449103. The next prime is 13449113. The reversal of 13449105 is 50194431.

It is not a de Polignac number, because 13449105 - 21 = 13449103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13449103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49677 + ... + 49946.

It is an arithmetic number, because the mean of its divisors is an integer number (1494360).

Almost surely, 213449105 is an apocalyptic number.

13449105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13449105 is a deficient number, since it is larger than the sum of its proper divisors (10460655).

13449105 is an equidigital number, since it uses as much as digits as its factorization.

13449105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99637 (or 99631 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13449105 is about 3667.3021419021. The cubic root of 13449105 is about 237.8105558812.

The spelling of 13449105 in words is "thirteen million, four hundred forty-nine thousand, one hundred five".

Divisors: 1 3 5 9 15 27 45 135 99623 298869 498115 896607 1494345 2689821 4483035 13449105