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12948169 = 1317411429
BaseRepresentation
bin110001011001…
…001011001001
3220100211112211
4301121023021
511303320134
61141305121
7215025523
oct61311311
926324484
1012948169
117344173
1244051a1
1328b4750
141a10a13
15120b764
hexc592c9

12948169 has 16 divisors (see below), whose sum is σ = 15135120. Its totient is φ = 10967040.

The previous prime is 12948167. The next prime is 12948191. The reversal of 12948169 is 96184921.

It can be written as a sum of positive squares in 8 ways, for example, as 4020025 + 8928144 = 2005^2 + 2988^2 .

It is not a de Polignac number, because 12948169 - 21 = 12948167 is a prime.

It is a super-2 number, since 2×129481692 = 335310160905122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12948163) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8347 + ... + 9775.

It is an arithmetic number, because the mean of its divisors is an integer number (945945).

Almost surely, 212948169 is an apocalyptic number.

It is an amenable number.

12948169 is a deficient number, since it is larger than the sum of its proper divisors (2186951).

12948169 is a wasteful number, since it uses less digits than its factorization.

12948169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its digits is 31104, while the sum is 40.

The square root of 12948169 is about 3598.3564303721. The cubic root of 12948169 is about 234.8205601674.

The spelling of 12948169 in words is "twelve million, nine hundred forty-eight thousand, one hundred sixty-nine".

Divisors: 1 13 17 41 221 533 697 1429 9061 18577 24293 58589 315809 761657 996013 12948169