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16068793 = 131577873
BaseRepresentation
bin111101010011…
…000010111001
31010020101020111
4331103002321
513103200133
61332224321
7253403536
oct75230271
933211214
1016068793
1190857a4
12546b0a1
133437c80
1421c3d8d
1516261cd
hexf530b9

16068793 has 8 divisors (see below), whose sum is σ = 17417288. Its totient is φ = 14736384.

The previous prime is 16068781. The next prime is 16068809. The reversal of 16068793 is 39786061.

It is the 1637-th star number.

It can be written as a sum of positive squares in 4 ways, for example, as 725904 + 15342889 = 852^2 + 3917^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-16068793 is a prime.

It is a super-2 number, since 2×160687932 = 516412216953698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16068733) 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 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 5977.

It is an arithmetic number, because the mean of its divisors is an integer number (2177161).

Almost surely, 216068793 is an apocalyptic number.

16068793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16068793 is a deficient number, since it is larger than the sum of its proper divisors (1348495).

16068793 is a wasteful number, since it uses less digits than its factorization.

16068793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16068793 is about 4008.5899016986. The cubic root of 16068793 is about 252.3448342495.

It can be divided in two parts, 16068 and 793, that added together give a palindrome (16861).

The spelling of 16068793 in words is "sixteen million, sixty-eight thousand, seven hundred ninety-three".

Divisors: 1 13 157 2041 7873 102349 1236061 16068793