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13045823 = 73179761
BaseRepresentation
bin110001110001…
…000000111111
3220112210111122
4301301000333
511314431243
61143341155
7215613320
oct61610077
926483448
1013045823
11740057a
1244517bb
13291a02b
141a38447
15122a668
hexc7103f

13045823 has 16 divisors (see below), whose sum is σ = 15605760. Its totient is φ = 10670400.

The previous prime is 13045811. The next prime is 13045841. The reversal of 13045823 is 32854031.

13045823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13045823 - 26 = 13045759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13045792 and 13045801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16763 + ... + 17523.

It is an arithmetic number, because the mean of its divisors is an integer number (975360).

Almost surely, 213045823 is an apocalyptic number.

13045823 is a deficient number, since it is larger than the sum of its proper divisors (2559937).

13045823 is an equidigital number, since it uses as much as digits as its factorization.

13045823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 13045823 is about 3611.9001924195. The cubic root of 13045823 is about 235.4094145711.

Adding to 13045823 its reverse (32854031), we get a palindrome (45899854).

The spelling of 13045823 in words is "thirteen million, forty-five thousand, eight hundred twenty-three".

Divisors: 1 7 31 79 217 553 761 2449 5327 17143 23591 60119 165137 420833 1863689 13045823