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11833980 = 2235197233
BaseRepresentation
bin101101001001…
…001001111100
3211021020011120
4231021021330
511012141410
61101350540
7202405254
oct55111174
924236146
1011833980
116753054
123b68450
1325b4572
141800964
15108b570
hexb4927c

11833980 has 24 divisors (see below), whose sum is σ = 33135312. Its totient is φ = 3155712.

The previous prime is 11833973. The next prime is 11833981. The reversal of 11833980 is 8933811.

11833980 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11833981) 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, 98557 + ... + 98676.

It is an arithmetic number, because the mean of its divisors is an integer number (1380638).

Almost surely, 211833980 is an apocalyptic number.

11833980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11833980 is an abundant number, since it is smaller than the sum of its proper divisors (21301332).

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

11833980 is a wasteful number, since it uses less digits than its factorization.

11833980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197245 (or 197243 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 11833980 is about 3440.0552321147. The cubic root of 11833980 is about 227.8821335999.

The spelling of 11833980 in words is "eleven million, eight hundred thirty-three thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 197233 394466 591699 788932 986165 1183398 1972330 2366796 2958495 3944660 5916990 11833980