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12133320 = 2335101111
BaseRepresentation
bin101110010010…
…001111001000
3211211102210020
4232102033020
511101231240
61112020440
7205063053
oct56221710
924742706
1012133320
116937a41
124091720
13268a8a4
14187ba9a
1510ea0d0
hexb923c8

12133320 has 32 divisors (see below), whose sum is σ = 36400320. Its totient is φ = 3235520.

The previous prime is 12133309. The next prime is 12133321. The reversal of 12133320 is 2333121.

It is a hoax number, since the sum of its digits (15) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12133320.

It is not an unprimeable number, because it can be changed into a prime (12133321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50436 + ... + 50675.

It is an arithmetic number, because the mean of its divisors is an integer number (1137510).

Almost surely, 212133320 is an apocalyptic number.

12133320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133320 is an abundant number, since it is smaller than the sum of its proper divisors (24267000).

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

12133320 is a wasteful number, since it uses less digits than its factorization.

12133320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101125 (or 101121 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12133320 is about 3483.2915467988. The cubic root of 12133320 is about 229.7875795532.

Adding to 12133320 its reverse (2333121), we get a palindrome (14466441).

The spelling of 12133320 in words is "twelve million, one hundred thirty-three thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 101111 202222 303333 404444 505555 606666 808888 1011110 1213332 1516665 2022220 2426664 3033330 4044440 6066660 12133320