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16484985 = 3351117653
BaseRepresentation
bin111110111000…
…101001111001
31011000112011000
4332320221321
513210004420
61345155213
7260056116
oct76705171
934015130
1016484985
11933a460
12562bb09
13355253a
14229190d
1516a9690
hexfb8a79

16484985 has 64 divisors (see below), whose sum is σ = 33903360. Its totient is φ = 7511040.

The previous prime is 16484977. The next prime is 16484987. The reversal of 16484985 is 58948461.

It is not a de Polignac number, because 16484985 - 23 = 16484977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16484985.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16484987) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24919 + ... + 25571.

It is an arithmetic number, because the mean of its divisors is an integer number (529740).

Almost surely, 216484985 is an apocalyptic number.

16484985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16484985 is an abundant number, since it is smaller than the sum of its proper divisors (17418375).

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

16484985 is a wasteful number, since it uses less digits than its factorization.

16484985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695 (or 689 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 16484985 is about 4060.1705629197. The cubic root of 16484985 is about 254.5049217890.

The spelling of 16484985 in words is "sixteen million, four hundred eighty-four thousand, nine hundred eighty-five".

Divisors: 1 3 5 9 11 15 17 27 33 45 51 55 85 99 135 153 165 187 255 297 459 495 561 653 765 935 1485 1683 1959 2295 2805 3265 5049 5877 7183 8415 9795 11101 17631 21549 25245 29385 33303 35915 55505 64647 88155 99909 107745 122111 166515 193941 299727 323235 366333 499545 610555 969705 1098999 1498635 1831665 3296997 5494995 16484985