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13118033 = 171973917
BaseRepresentation
bin110010000010…
…101001010001
3220200110120002
4302002221101
511324234113
61145055345
7216333665
oct62025121
926613502
1013118033
11744a855
124487555
132943b66
141a568a5
151241c58
hexc82a51

13118033 has 8 divisors (see below), whose sum is σ = 13963752. Its totient is φ = 12280576.

The previous prime is 13118023. The next prime is 13118059. The reversal of 13118033 is 33081131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9628609 + 3489424 = 3103^2 + 1868^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13118033 - 26 = 13117969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13117996 and 13118014.

It is not an unprimeable number, because it can be changed into a prime (13118003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (1745469).

Almost surely, 213118033 is an apocalyptic number.

It is an amenable number.

13118033 is a deficient number, since it is larger than the sum of its proper divisors (845719).

13118033 is a wasteful number, since it uses less digits than its factorization.

13118033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 13118033 is about 3621.8825215625. The cubic root of 13118033 is about 235.8429542649.

Adding to 13118033 its reverse (33081131), we get a palindrome (46199164).

The spelling of 13118033 in words is "thirteen million, one hundred eighteen thousand, thirty-three".

Divisors: 1 17 197 3349 3917 66589 771649 13118033