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12884388 = 2231197609
BaseRepresentation
bin110001001001…
…100110100100
3220020121001120
4301021212210
511244300023
61140053540
7214341546
oct61114644
926217046
1012884388
117300260
1243942b0
1328916ca
1419d5696
1511e78e3
hexc499a4

12884388 has 24 divisors (see below), whose sum is σ = 32796960. Its totient is φ = 3904320.

The previous prime is 12884387. The next prime is 12884411. The reversal of 12884388 is 88348821.

It is not an unprimeable number, because it can be changed into a prime (12884387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48673 + ... + 48936.

It is an arithmetic number, because the mean of its divisors is an integer number (1366540).

Almost surely, 212884388 is an apocalyptic number.

It is an amenable number.

12884388 is an abundant number, since it is smaller than the sum of its proper divisors (19912572).

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

12884388 is a wasteful number, since it uses less digits than its factorization.

12884388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97627 (or 97625 counting only the distinct ones).

The product of its digits is 98304, while the sum is 42.

The square root of 12884388 is about 3589.4829711255. The cubic root of 12884388 is about 234.4343601468.

The spelling of 12884388 in words is "twelve million, eight hundred eighty-four thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 97609 195218 292827 390436 585654 1073699 1171308 2147398 3221097 4294796 6442194 12884388