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13117330 = 251311733
BaseRepresentation
bin110010000010…
…011110010010
3220200102121001
4302002132102
511324223310
61145052214
7216331642
oct62023622
926612531
1013117330
11744a276
12448706a
132943745
141a56522
15124193a
hexc82792

13117330 has 8 divisors (see below), whose sum is σ = 23611212. Its totient is φ = 5246928.

The previous prime is 13117259. The next prime is 13117331. The reversal of 13117330 is 3371131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12341169 + 776161 = 3513^2 + 881^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13117298 and 13117307.

It is not an unprimeable number, because it can be changed into a prime (13117331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655857 + ... + 655876.

Almost surely, 213117330 is an apocalyptic number.

13117330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13117330 is a deficient number, since it is larger than the sum of its proper divisors (10493882).

13117330 is a wasteful number, since it uses less digits than its factorization.

13117330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311740.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 13117330 is about 3621.7854712835. The cubic root of 13117330 is about 235.8387412207.

Adding to 13117330 its reverse (3371131), we get a palindrome (16488461).

The spelling of 13117330 in words is "thirteen million, one hundred seventeen thousand, three hundred thirty".

Divisors: 1 2 5 10 1311733 2623466 6558665 13117330