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16068409 = 76734261
BaseRepresentation
bin111101010010…
…111100111001
31010020100201021
4331102330321
513103142114
61332222441
7253402450
oct75227471
933210637
1016068409
119085485
12546aa21
133437a46
1421c3b97
151626024
hexf52f39

16068409 has 8 divisors (see below), whose sum is σ = 18638528. Its totient is φ = 13566960.

The previous prime is 16068401. The next prime is 16068427. The reversal of 16068409 is 90486061.

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 16068409 - 23 = 16068401 is a prime.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16662 + ... + 17599.

It is an arithmetic number, because the mean of its divisors is an integer number (2329816).

Almost surely, 216068409 is an apocalyptic number.

It is an amenable number.

16068409 is a deficient number, since it is larger than the sum of its proper divisors (2570119).

16068409 is an equidigital number, since it uses as much as digits as its factorization.

16068409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34335.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 16068409 is about 4008.5420042704. The cubic root of 16068409 is about 252.3428241174.

The spelling of 16068409 in words is "sixteen million, sixty-eight thousand, four hundred nine".

Divisors: 1 7 67 469 34261 239827 2295487 16068409