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12833220 = 2235213887
BaseRepresentation
bin110000111101…
…000111000100
3220010222212110
4300331013010
511241130340
61135021020
7214036431
oct60750704
926128773
1012833220
117275874
12436a770
13287432a
1419c0b88
1511d7680
hexc3d1c4

12833220 has 24 divisors (see below), whose sum is σ = 35933184. Its totient is φ = 3422176.

The previous prime is 12833159. The next prime is 12833237. The reversal of 12833220 is 2233821.

It is an unprimeable number.

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, 106884 + ... + 107003.

It is an arithmetic number, because the mean of its divisors is an integer number (1497216).

Almost surely, 212833220 is an apocalyptic number.

12833220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12833220 is an abundant number, since it is smaller than the sum of its proper divisors (23099964).

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

12833220 is a wasteful number, since it uses less digits than its factorization.

12833220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213899 (or 213897 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12833220 is about 3582.3483917676. The cubic root of 12833220 is about 234.1236106353.

The spelling of 12833220 in words is "twelve million, eight hundred thirty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 213887 427774 641661 855548 1069435 1283322 2138870 2566644 3208305 4277740 6416610 12833220