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16434169 = 17991811
BaseRepresentation
bin111110101100…
…001111111001
31010220221102221
4332230033321
513201343134
61344124041
7256455013
oct76541771
933827387
1016434169
119305264
125606621
13353537b
14227b1b3
1516995b4
hexfac3f9

16434169 has 4 divisors (see below), whose sum is σ = 16526160. Its totient is φ = 16342180.

The previous prime is 16434151. The next prime is 16434191. The reversal of 16434169 is 96143461.

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 not a de Polignac number, because 16434169 - 25 = 16434137 is a prime.

It is a super-2 number, since 2×164341692 = 540163821441122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16434139) 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, 45727 + ... + 46084.

It is an arithmetic number, because the mean of its divisors is an integer number (4131540).

Almost surely, 216434169 is an apocalyptic number.

It is an amenable number.

16434169 is a deficient number, since it is larger than the sum of its proper divisors (91991).

16434169 is an equidigital number, since it uses as much as digits as its factorization.

16434169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91990.

The product of its digits is 15552, while the sum is 34.

The square root of 16434169 is about 4053.9078677247. The cubic root of 16434169 is about 254.2431434948.

The spelling of 16434169 in words is "sixteen million, four hundred thirty-four thousand, one hundred sixty-nine".

Divisors: 1 179 91811 16434169