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16068481 = 1113313359
BaseRepresentation
bin111101010010…
…111110000001
31010020100210221
4331102332001
513103142411
61332223041
7253402612
oct75227601
933210727
1016068481
119085540
12546aa81
133437aa0
1421c3c09
151626071
hexf52f81

16068481 has 16 divisors (see below), whose sum is σ = 18990720. Its totient is φ = 13403520.

The previous prime is 16068469. The next prime is 16068499. The reversal of 16068481 is 18486061.

It is not a de Polignac number, because 16068481 - 25 = 16068449 is a prime.

It is a super-2 number, since 2×160684812 = 516392163294722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16068401) 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 15 ways as a sum of consecutive naturals, for example, 44580 + ... + 44938.

It is an arithmetic number, because the mean of its divisors is an integer number (1186920).

Almost surely, 216068481 is an apocalyptic number.

16068481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16068481 is a deficient number, since it is larger than the sum of its proper divisors (2922239).

16068481 is a wasteful number, since it uses less digits than its factorization.

16068481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 16068481 is about 4008.5509850818. The cubic root of 16068481 is about 252.3432010196.

The spelling of 16068481 in words is "sixteen million, sixty-eight thousand, four hundred eighty-one".

Divisors: 1 11 13 143 313 359 3443 3949 4069 4667 44759 51337 112367 1236037 1460771 16068481