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12828474 = 232712693
BaseRepresentation
bin110000111011…
…111100111010
3220010202100200
4300323330322
511241002344
61134543030
7214016541
oct60737472
926122320
1012828474
11727224a
124367a76
132872119
1419bd158
1511d6069
hexc3bf3a

12828474 has 12 divisors (see below), whose sum is σ = 27795066. Its totient is φ = 4276152.

The previous prime is 12828463. The next prime is 12828481. The reversal of 12828474 is 47482821.

It can be written as a sum of positive squares in only one way, i.e., 12552849 + 275625 = 3543^2 + 525^2 .

It is a super-3 number, since 3×128284743 (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356329 + ... + 356364.

Almost surely, 212828474 is an apocalyptic number.

12828474 is an abundant number, since it is smaller than the sum of its proper divisors (14966592).

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

12828474 is a wasteful number, since it uses less digits than its factorization.

12828474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712701 (or 712698 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 12828474 is about 3581.6859158782. The cubic root of 12828474 is about 234.0947457658.

The spelling of 12828474 in words is "twelve million, eight hundred twenty-eight thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 18 712693 1425386 2138079 4276158 6414237 12828474