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18035040 = 253537573
BaseRepresentation
bin100010011001…
…1000101100000
31020221021102110
41010303011200
514104110130
61442315320
7306203202
oct104630540
936837373
1018035040
11a1a8aa1
126058b40
133975c2a
142576772
1518b3ab0
hex1133160

18035040 has 48 divisors (see below), whose sum is σ = 56811888. Its totient is φ = 4809216.

The previous prime is 18035033. The next prime is 18035041. The reversal of 18035040 is 4053081.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 18034998 and 18035016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18035041) 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, 18307 + ... + 19266.

It is an arithmetic number, because the mean of its divisors is an integer number (1183581).

Almost surely, 218035040 is an apocalyptic number.

18035040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18035040 is an abundant number, since it is smaller than the sum of its proper divisors (38776848).

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

18035040 is a wasteful number, since it uses less digits than its factorization.

18035040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37591 (or 37583 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 18035040 is about 4246.7681829834. The cubic root of 18035040 is about 262.2440861891.

18035040 divided by its product of nonzero digits (480) gives a palindrome (37573).

The spelling of 18035040 in words is "eighteen million, thirty-five thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 37573 75146 112719 150292 187865 225438 300584 375730 450876 563595 601168 751460 901752 1127190 1202336 1502920 1803504 2254380 3005840 3607008 4508760 6011680 9017520 18035040