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18068235 = 352514799
BaseRepresentation
bin100010011101…
…1001100001011
31020222221221220
41010323030023
514111140420
61443133123
7306402033
oct104731413
936887856
1018068235
11a220a29
1260741a3
133988083
1425848c3
1518bd840
hex113b30b

18068235 has 16 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 9596000.

The previous prime is 18068233. The next prime is 18068251. The reversal of 18068235 is 53286081.

It is a happy number.

It is not a de Polignac number, because 18068235 - 21 = 18068233 is a prime.

It is a super-2 number, since 2×180682352 = 652922232030450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18068196 and 18068205.

It is not an unprimeable number, because it can be changed into a prime (18068233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366 + ... + 6164.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 218068235 is an apocalyptic number.

18068235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18068235 is a deficient number, since it is larger than the sum of its proper divisors (10962165).

18068235 is a wasteful number, since it uses less digits than its factorization.

18068235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 18068235 is about 4250.6746523346. The cubic root of 18068235 is about 262.4048816373.

The spelling of 18068235 in words is "eighteen million, sixty-eight thousand, two hundred thirty-five".

Divisors: 1 3 5 15 251 753 1255 3765 4799 14397 23995 71985 1204549 3613647 6022745 18068235