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12889124 = 223222281
BaseRepresentation
bin110001001010…
…110000100100
3220020211112222
4301022300210
511244422444
61140131512
7214361423
oct61126044
926224488
1012889124
117303876
124396b98
132893901
1419d72ba
1511e8eee
hexc4ac24

12889124 has 6 divisors (see below), whose sum is σ = 22555974. Its totient is φ = 6444560.

The previous prime is 12889109. The next prime is 12889133. The reversal of 12889124 is 42198821.

It can be written as a sum of positive squares in only one way, i.e., 12888100 + 1024 = 3590^2 + 32^2 .

It is a super-2 number, since 2×128891242 = 332259034974752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611137 + ... + 1611144.

It is an arithmetic number, because the mean of its divisors is an integer number (3759329).

Almost surely, 212889124 is an apocalyptic number.

It is an amenable number.

12889124 is a deficient number, since it is larger than the sum of its proper divisors (9666850).

12889124 is a wasteful number, since it uses less digits than its factorization.

12889124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222285 (or 3222283 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 12889124 is about 3590.1426155516. The cubic root of 12889124 is about 234.4630808259.

The spelling of 12889124 in words is "twelve million, eight hundred eighty-nine thousand, one hundred twenty-four".

Divisors: 1 2 4 3222281 6444562 12889124