Base | Representation |
---|---|
bin | 110001011001… |
… | …010111010101 |
3 | 220100212121201 |
4 | 301121113111 |
5 | 11303331244 |
6 | 1141312501 |
7 | 215031016 |
oct | 61312725 |
9 | 26325551 |
10 | 12948949 |
11 | 7344812 |
12 | 4405731 |
13 | 28b4c00 |
14 | 1a1100d |
15 | 120bad4 |
hex | c595d5 |
12948949 has 12 divisors (see below), whose sum is σ = 14129796. Its totient is φ = 11860992.
The previous prime is 12948911. The next prime is 12948961. The reversal of 12948949 is 94984921.
It can be written as a sum of positive squares in 6 ways, for example, as 2340900 + 10608049 = 1530^2 + 3257^2 .
It is not a de Polignac number, because 12948949 - 219 = 12424661 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12948899 and 12948908.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12948349) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32419 + ... + 32815.
It is an arithmetic number, because the mean of its divisors is an integer number (1177483).
Almost surely, 212948949 is an apocalyptic number.
It is an amenable number.
12948949 is a deficient number, since it is larger than the sum of its proper divisors (1180847).
12948949 is a wasteful number, since it uses less digits than its factorization.
12948949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 616 (or 603 counting only the distinct ones).
The product of its digits is 186624, while the sum is 46.
The square root of 12948949 is about 3598.4648115551. The cubic root of 12948949 is about 234.8252752834.
The spelling of 12948949 in words is "twelve million, nine hundred forty-eight thousand, nine hundred forty-nine".
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