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16768540 = 2257910613
BaseRepresentation
bin111111111101…
…111000011100
31011112221010001
4333331320130
513243043130
61355224044
7262346605
oct77757034
934487101
1016768540
1195134a8
125748024
133621619
142326dac
1517136ca
hexffde1c

16768540 has 24 divisors (see below), whose sum is σ = 35663040. Its totient is φ = 6621888.

The previous prime is 16768537. The next prime is 16768561. The reversal of 16768540 is 4586761.

It is a self number, because there is not a number n which added to its sum of digits gives 16768540.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3727 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (1485960).

Almost surely, 216768540 is an apocalyptic number.

16768540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16768540 is an abundant number, since it is smaller than the sum of its proper divisors (18894500).

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

16768540 is a wasteful number, since it uses less digits than its factorization.

16768540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10701 (or 10699 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 16768540 is about 4094.9407810126. The cubic root of 16768540 is about 255.9558639731.

The spelling of 16768540 in words is "sixteen million, seven hundred sixty-eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 10613 21226 42452 53065 106130 212260 838427 1676854 3353708 4192135 8384270 16768540