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13023524 = 223255881
BaseRepresentation
bin110001101011…
…100100100100
3220111122220202
4301223210210
511313223044
61143050032
7215461313
oct61534444
926448822
1013023524
117395848
124440918
13290cb37
141a3027a
151223c4e
hexc6b924

13023524 has 6 divisors (see below), whose sum is σ = 22791174. Its totient is φ = 6511760.

The previous prime is 13023509. The next prime is 13023529. The reversal of 13023524 is 42532031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12888100 + 135424 = 3590^2 + 368^2 .

It is a super-2 number, since 2×130235242 = 339224354757152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13023496 and 13023505.

It is not an unprimeable number, because it can be changed into a prime (13023529) 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 as a sum of consecutive naturals, namely, 1627937 + ... + 1627944.

It is an arithmetic number, because the mean of its divisors is an integer number (3798529).

Almost surely, 213023524 is an apocalyptic number.

It is an amenable number.

13023524 is a deficient number, since it is larger than the sum of its proper divisors (9767650).

13023524 is a wasteful number, since it uses less digits than its factorization.

13023524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255885 (or 3255883 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13023524 is about 3608.8119928863. The cubic root of 13023524 is about 235.2752109955.

Adding to 13023524 its reverse (42532031), we get a palindrome (55555555).

The spelling of 13023524 in words is "thirteen million, twenty-three thousand, five hundred twenty-four".

Divisors: 1 2 4 3255881 6511762 13023524