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13053816 = 2332181303
BaseRepresentation
bin110001110010…
…111101111000
3220120012110200
4301302331320
511320210231
61143442200
7215645526
oct61627570
926505420
1013053816
117406586
124456360
132920869
141a3b316
15122cbe6
hexc72f78

13053816 has 24 divisors (see below), whose sum is σ = 35354280. Its totient is φ = 4351248.

The previous prime is 13053797. The next prime is 13053829. The reversal of 13053816 is 61835031.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×130538162 = 340804224323712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13053816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90580 + ... + 90723.

It is an arithmetic number, because the mean of its divisors is an integer number (1473095).

Almost surely, 213053816 is an apocalyptic number.

It is an amenable number.

13053816 is an abundant number, since it is smaller than the sum of its proper divisors (22300464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13053816 is a wasteful number, since it uses less digits than its factorization.

13053816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181315 (or 181308 counting only the distinct ones).

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

The square root of 13053816 is about 3613.0065042842. The cubic root of 13053816 is about 235.4574821480.

Adding to 13053816 its reverse (61835031), we get a palindrome (74888847).

The spelling of 13053816 in words is "thirteen million, fifty-three thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 181303 362606 543909 725212 1087818 1450424 1631727 2175636 3263454 4351272 6526908 13053816