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13074229 = 72266821
BaseRepresentation
bin110001110111…
…111100110101
3220121020110201
4301313330311
511321333404
61144120501
7216062200
oct61677465
926536421
1013074229
11741a953
124466131
132929c3c
141a44937
151233ca4
hexc77f35

13074229 has 6 divisors (see below), whose sum is σ = 15208854. Its totient is φ = 11206440.

The previous prime is 13074211. The next prime is 13074233. The reversal of 13074229 is 92247031.

13074229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11573604 + 1500625 = 3402^2 + 1225^2 .

It is not a de Polignac number, because 13074229 - 25 = 13074197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13074197 and 13074206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13074239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133362 + ... + 133459.

It is an arithmetic number, because the mean of its divisors is an integer number (2534809).

Almost surely, 213074229 is an apocalyptic number.

It is an amenable number.

13074229 is a deficient number, since it is larger than the sum of its proper divisors (2134625).

13074229 is an equidigital number, since it uses as much as digits as its factorization.

13074229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266835 (or 266828 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13074229 is about 3615.8303334089. The cubic root of 13074229 is about 235.5801510139.

The spelling of 13074229 in words is "thirteen million, seventy-four thousand, two hundred twenty-nine".

Divisors: 1 7 49 266821 1867747 13074229