Search a number
-
+
16806972954 = 2338920833457
BaseRepresentation
bin11111010011100011…
…00000111000011010
31121101022021200120210
433221301200320122
5233410041113304
611415423431550
71133330625102
oct175161407032
947338250523
1016806972954
1171451095a2
1233107555b6
13177b00ac15
14b561d4202
15685798c89
hex3e9c60e1a

16806972954 has 32 divisors (see below), whose sum is σ = 33726288960. Its totient is φ = 5583624192.

The previous prime is 16806972953. The next prime is 16806972979. The reversal of 16806972954 is 45927960861.

16806972954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×168069729542 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16806972894 and 16806972903.

It is not an unprimeable number, because it can be changed into a prime (16806972953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4859994 + ... + 4863450.

It is an arithmetic number, because the mean of its divisors is an integer number (1053946530).

Almost surely, 216806972954 is an apocalyptic number.

16806972954 is an abundant number, since it is smaller than the sum of its proper divisors (16919316006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16806972954 is a wasteful number, since it uses less digits than its factorization.

16806972954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 16806972954 in words is "sixteen billion, eight hundred six million, nine hundred seventy-two thousand, nine hundred fifty-four".

Divisors: 1 2 3 6 389 778 1167 2083 2334 3457 4166 6249 6914 10371 12498 20742 810287 1344773 1620574 2430861 2689546 4034319 4861722 7200931 8068638 14401862 21602793 43205586 2801162159 5602324318 8403486477 16806972954