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18068107 = 19950953
BaseRepresentation
bin100010011101…
…1001010001011
31020222221210011
41010323022023
514111134412
61443132351
7306401461
oct104731213
936887704
1018068107
11a220922
1260740b7
133987cb5
142584831
1518bd7a7
hex113b28b

18068107 has 4 divisors (see below), whose sum is σ = 19019080. Its totient is φ = 17117136.

The previous prime is 18068033. The next prime is 18068137. The reversal of 18068107 is 70186081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18068107 - 219 = 17543819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18068137) 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, 475458 + ... + 475495.

It is an arithmetic number, because the mean of its divisors is an integer number (4754770).

Almost surely, 218068107 is an apocalyptic number.

18068107 is a deficient number, since it is larger than the sum of its proper divisors (950973).

18068107 is an equidigital number, since it uses as much as digits as its factorization.

18068107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950972.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 18068107 is about 4250.6595958745. The cubic root of 18068107 is about 262.4042619880.

The spelling of 18068107 in words is "eighteen million, sixty-eight thousand, one hundred seven".

Divisors: 1 19 950953 18068107