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12230860 = 225611543
BaseRepresentation
bin101110101010…
…000011001100
3212000101120211
4232222003030
511112341420
61114052204
7205650325
oct56520314
925011524
1012230860
1169a4254
12411a064
1326c30c5
1418a544c
151118e5a
hexbaa0cc

12230860 has 12 divisors (see below), whose sum is σ = 25684848. Its totient is φ = 4892336.

The previous prime is 12230809. The next prime is 12230861. The reversal of 12230860 is 6803221.

It is not an unprimeable number, because it can be changed into a prime (12230861) 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 3 ways as a sum of consecutive naturals, for example, 305752 + ... + 305791.

It is an arithmetic number, because the mean of its divisors is an integer number (2140404).

Almost surely, 212230860 is an apocalyptic number.

12230860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230860 is an abundant number, since it is smaller than the sum of its proper divisors (13453988).

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

12230860 is a wasteful number, since it uses less digits than its factorization.

12230860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611552 (or 611550 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12230860 is about 3497.2646454050. The cubic root of 12230860 is about 230.4016924950.

The spelling of 12230860 in words is "twelve million, two hundred thirty thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 611543 1223086 2446172 3057715 6115430 12230860