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12887116 = 22111731693
BaseRepresentation
bin110001001010…
…010001001100
3220020201210121
4301022101030
511244341431
61140114324
7214352524
oct61122114
926221717
1012887116
117302310
1243959a4
132892a18
1419d6684
1511e8611
hexc4a44c

12887116 has 24 divisors (see below), whose sum is σ = 24759504. Its totient is φ = 5820480.

The previous prime is 12887113. The next prime is 12887117. The reversal of 12887116 is 61178821.

12887116 = T81 + T82 + ... + T426.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12887113) 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, 6766 + ... + 8458.

It is an arithmetic number, because the mean of its divisors is an integer number (1031646).

Almost surely, 212887116 is an apocalyptic number.

It is an amenable number.

12887116 is a deficient number, since it is larger than the sum of its proper divisors (11872388).

12887116 is a wasteful number, since it uses less digits than its factorization.

12887116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1879 counting only the distinct ones).

The product of its digits is 5376, while the sum is 34.

The square root of 12887116 is about 3589.8629500303. The cubic root of 12887116 is about 234.4509045053.

The spelling of 12887116 in words is "twelve million, eight hundred eighty-seven thousand, one hundred sixteen".

Divisors: 1 2 4 11 22 44 173 346 692 1693 1903 3386 3806 6772 7612 18623 37246 74492 292889 585778 1171556 3221779 6443558 12887116