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16316897 = 79206543
BaseRepresentation
bin111110001111…
…100111100001
31010200222120112
4332033213201
513134120042
61341421105
7255456062
oct76174741
933628515
1016316897
119235143
12556a795
1334c3b8c
14224a569
151674982
hexf8f9e1

16316897 has 4 divisors (see below), whose sum is σ = 16523520. Its totient is φ = 16110276.

The previous prime is 16316891. The next prime is 16316899. The reversal of 16316897 is 79861361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16316897 is a prime.

It is a super-2 number, since 2×163168972 = 532482255417218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16316891) 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, 103193 + ... + 103350.

It is an arithmetic number, because the mean of its divisors is an integer number (4130880).

Almost surely, 216316897 is an apocalyptic number.

It is an amenable number.

16316897 is a deficient number, since it is larger than the sum of its proper divisors (206623).

16316897 is an equidigital number, since it uses as much as digits as its factorization.

16316897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206622.

The product of its digits is 54432, while the sum is 41.

The square root of 16316897 is about 4039.4179036094. The cubic root of 16316897 is about 253.6369511068.

The spelling of 16316897 in words is "sixteen million, three hundred sixteen thousand, eight hundred ninety-seven".

Divisors: 1 79 206543 16316897