Search a number
-
+
16907085 = 3251328901
BaseRepresentation
bin100000001111…
…1101101001101
31011210222011100
41000133231031
513312011320
61402213313
7263464536
oct100375515
934728140
1016907085
1195a85a8
1257b4239
13366c6c0
14236168d
15173e790
hex101fb4d

16907085 has 24 divisors (see below), whose sum is σ = 31560984. Its totient is φ = 8323200.

The previous prime is 16907083. The next prime is 16907089. The reversal of 16907085 is 58070961.

It can be written as a sum of positive squares in 4 ways, for example, as 4076361 + 12830724 = 2019^2 + 3582^2 .

It is not a de Polignac number, because 16907085 - 21 = 16907083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16907081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13866 + ... + 15035.

It is an arithmetic number, because the mean of its divisors is an integer number (1315041).

Almost surely, 216907085 is an apocalyptic number.

16907085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16907085 is a deficient number, since it is larger than the sum of its proper divisors (14653899).

16907085 is a wasteful number, since it uses less digits than its factorization.

16907085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28925 (or 28922 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 16907085 is about 4111.8225885853. The cubic root of 16907085 is about 256.6588507955.

The spelling of 16907085 in words is "sixteen million, nine hundred seven thousand, eighty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 28901 86703 144505 260109 375713 433515 1127139 1300545 1878565 3381417 5635695 16907085