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14161540 = 225798963
BaseRepresentation
bin110110000001…
…011010000100
3222122110222111
4312001122010
512111132130
61223310404
7231241201
oct66013204
928573874
1014161540
117aa2858
1248ab404
132c1ab13
141c48ca8
15139b02a
hexd81684

14161540 has 24 divisors (see below), whose sum is σ = 30119040. Its totient is φ = 5592288.

The previous prime is 14161529. The next prime is 14161549. The reversal of 14161540 is 4516141.

It is not an unprimeable number, because it can be changed into a prime (14161549) 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, 2902 + ... + 6061.

It is an arithmetic number, because the mean of its divisors is an integer number (1254960).

Almost surely, 214161540 is an apocalyptic number.

14161540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14161540 is an abundant number, since it is smaller than the sum of its proper divisors (15957500).

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

14161540 is a wasteful number, since it uses less digits than its factorization.

14161540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051 (or 9049 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 14161540 is about 3763.1821640734. The cubic root of 14161540 is about 241.9376703535.

Adding to 14161540 its reverse (4516141), we get a palindrome (18677681).

The spelling of 14161540 in words is "fourteen million, one hundred sixty-one thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 8963 17926 35852 44815 89630 179260 708077 1416154 2832308 3540385 7080770 14161540