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13145824 = 25410807
BaseRepresentation
bin110010001001…
…011011100000
3220201212200101
4302021123200
511331131244
61145432144
7216511006
oct62113340
926655611
1013145824
11746971a
12449b654
1329536c3
141a62a76
15124a0d4
hexc896e0

13145824 has 12 divisors (see below), whose sum is σ = 25880904. Its totient is φ = 6572896.

The previous prime is 13145819. The next prime is 13145833. The reversal of 13145824 is 42854131.

It is a junction number, because it is equal to n+sod(n) for n = 13145792 and 13145801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205372 + ... + 205435.

It is an arithmetic number, because the mean of its divisors is an integer number (2156742).

Almost surely, 213145824 is an apocalyptic number.

It is an amenable number.

13145824 is a deficient number, since it is larger than the sum of its proper divisors (12735080).

13145824 is an equidigital number, since it uses as much as digits as its factorization.

13145824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410817 (or 410809 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 13145824 is about 3625.7170325330. The cubic root of 13145824 is about 236.0093839034.

Adding to 13145824 its reverse (42854131), we get a palindrome (55999955).

The spelling of 13145824 in words is "thirteen million, one hundred forty-five thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 32 410807 821614 1643228 3286456 6572912 13145824