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12884330 = 255212473
BaseRepresentation
bin110001001001…
…100101101010
3220020120222102
4301021211222
511244244310
61140053402
7214341434
oct61114552
926216872
1012884330
117300208
124394262
132891684
1419d5654
1511e78a5
hexc4996a

12884330 has 16 divisors (see below), whose sum is σ = 23245704. Its totient is φ = 5141760.

The previous prime is 12884329. The next prime is 12884341. The reversal of 12884330 is 3348821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10491121 + 2393209 = 3239^2 + 1547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12884293 and 12884302.

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, 3974 + ... + 6446.

Almost surely, 212884330 is an apocalyptic number.

12884330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12884330 is a deficient number, since it is larger than the sum of its proper divisors (10361374).

12884330 is a wasteful number, since it uses less digits than its factorization.

12884330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12884330 is about 3589.4748919584. The cubic root of 12884330 is about 234.4340083719.

The spelling of 12884330 in words is "twelve million, eight hundred eighty-four thousand, three hundred thirty".

Divisors: 1 2 5 10 521 1042 2473 2605 4946 5210 12365 24730 1288433 2576866 6442165 12884330