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12332720 = 245154159
BaseRepresentation
bin101111000010…
…111010110000
3212012120022102
4233002322300
511124121340
61120155532
7206553311
oct57027260
925176272
1012332720
116a63834
124168ba8
13272a58a
1418d0608
151139215
hexbc2eb0

12332720 has 20 divisors (see below), whose sum is σ = 28673760. Its totient is φ = 4933056.

The previous prime is 12332717. The next prime is 12332731. The reversal of 12332720 is 2723321.

12332720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12332692 and 12332701.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77000 + ... + 77159.

It is an arithmetic number, because the mean of its divisors is an integer number (1433688).

Almost surely, 212332720 is an apocalyptic number.

12332720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12332720 is an abundant number, since it is smaller than the sum of its proper divisors (16341040).

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

12332720 is a wasteful number, since it uses less digits than its factorization.

12332720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154172 (or 154166 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 12332720 is about 3511.7972606630. The cubic root of 12332720 is about 231.0395289762.

The spelling of 12332720 in words is "twelve million, three hundred thirty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 154159 308318 616636 770795 1233272 1541590 2466544 3083180 6166360 12332720