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16169 = 192337
BaseRepresentation
bin11111100101001
3211011212
43330221
51004134
6202505
765066
oct37451
924155
1016169
111116a
129435
13748a
145c6d
154bce
hex3f29

16169 has 8 divisors (see below), whose sum is σ = 18240. Its totient is φ = 14256.

The previous prime is 16141. The next prime is 16183. The reversal of 16169 is 96161.

16169 divided by its sum of digits (23) gives a triangular number (703 = T37).

It can be divided in two parts, 16 and 169, that multiplied together give a square (2704 = 522).

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 16169 - 28 = 15913 is a prime.

It is a super-2 number, since 2×161692 = 522873122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 11 and base 15.

It is not an unprimeable number, because it can be changed into a prime (16139) 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, 419 + ... + 455.

It is an arithmetic number, because the mean of its divisors is an integer number (2280).

216169 is an apocalyptic number.

16169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16169 is a deficient number, since it is larger than the sum of its proper divisors (2071).

16169 is a wasteful number, since it uses less digits than its factorization.

16169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79.

The product of its digits is 324, while the sum is 23.

The square root of 16169 is about 127.1573827979. The cubic root of 16169 is about 25.2868298923.

The spelling of 16169 in words is "sixteen thousand, one hundred sixty-nine".

Divisors: 1 19 23 37 437 703 851 16169