Search a number
-
+
16165485 = 3257193773
BaseRepresentation
bin111101101010…
…101001101101
31010102021212200
4331222221231
513114243420
61334252113
7254255460
oct75525155
933367780
1016165485
119141406
1254b7039
13346cc9b
14220b2d7
151644b90
hexf6aa6d

16165485 has 96 divisors (see below), whose sum is σ = 35093760. Its totient is φ = 6718464.

The previous prime is 16165483. The next prime is 16165489. The reversal of 16165485 is 58456161.

16165485 is a `hidden beast` number, since 16 + 165 + 485 = 666.

It is not a de Polignac number, because 16165485 - 21 = 16165483 is a prime.

It is a super-2 number, since 2×161654852 = 522645810570450, which contains 22 as substring.

Its product of digits (28800) is a multiple of the sum of its prime divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165483) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 221409 + ... + 221481.

It is an arithmetic number, because the mean of its divisors is an integer number (365560).

Almost surely, 216165485 is an apocalyptic number.

16165485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16165485 is an abundant number, since it is smaller than the sum of its proper divisors (18928275).

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

16165485 is a wasteful number, since it uses less digits than its factorization.

16165485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 144 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 16165485 is about 4020.6324129420. The cubic root of 16165485 is about 252.8499738053.

The spelling of 16165485 in words is "sixteen million, one hundred sixty-five thousand, four hundred eighty-five".

Divisors: 1 3 5 7 9 15 19 21 35 37 45 57 63 73 95 105 111 133 171 185 219 259 285 315 333 365 399 511 555 657 665 703 777 855 1095 1197 1295 1387 1533 1665 1995 2109 2331 2555 2701 3285 3515 3885 4161 4599 4921 5985 6327 6935 7665 8103 9709 10545 11655 12483 13505 14763 18907 20805 22995 24309 24605 29127 31635 40515 44289 48545 51319 56721 62415 73815 87381 94535 121545 145635 153957 170163 221445 256595 283605 359233 436905 461871 769785 850815 1077699 1796165 2309355 3233097 5388495 16165485