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12280468 = 223070117
BaseRepresentation
bin101110110110…
…001010010100
3212002220122011
4232312022110
511120433333
61115114004
7206245054
oct56661224
925086564
1012280468
116a28552
124142904
13270c865
1418b9564
1511289cd
hexbb6294

12280468 has 6 divisors (see below), whose sum is σ = 21490826. Its totient is φ = 6140232.

The previous prime is 12280453. The next prime is 12280469. The reversal of 12280468 is 86408221.

12280468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7387524 + 4892944 = 2718^2 + 2212^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1535055 + ... + 1535062.

Almost surely, 212280468 is an apocalyptic number.

It is an amenable number.

12280468 is a deficient number, since it is larger than the sum of its proper divisors (9210358).

12280468 is a wasteful number, since it uses less digits than its factorization.

12280468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070121 (or 3070119 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 12280468 is about 3504.3498683779. The cubic root of 12280468 is about 230.7127730719.

Adding to 12280468 its reverse (86408221), we get a palindrome (98688689).

The spelling of 12280468 in words is "twelve million, two hundred eighty thousand, four hundred sixty-eight".

Divisors: 1 2 4 3070117 6140234 12280468