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13088938 = 210960041
BaseRepresentation
bin110001111011…
…100010101010
3220121222122111
4301323202222
511322321223
61144312534
7216153112
oct61734252
926558574
1013088938
11742aa05
12447274a
132933845
141a4a042
15123830d
hexc7b8aa

13088938 has 8 divisors (see below), whose sum is σ = 19813860. Its totient is φ = 6484320.

The previous prime is 13088927. The next prime is 13088939. The reversal of 13088938 is 83988031.

It can be written as a sum of positive squares in 2 ways, for example, as 10323369 + 2765569 = 3213^2 + 1663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13088938.

It is not an unprimeable number, because it can be changed into a prime (13088939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29803 + ... + 30238.

Almost surely, 213088938 is an apocalyptic number.

13088938 is a deficient number, since it is larger than the sum of its proper divisors (6724922).

13088938 is a wasteful number, since it uses less digits than its factorization.

13088938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60152.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 13088938 is about 3617.8637343051. The cubic root of 13088938 is about 235.6684634178.

The spelling of 13088938 in words is "thirteen million, eighty-eight thousand, nine hundred thirty-eight".

Divisors: 1 2 109 218 60041 120082 6544469 13088938