Base | Representation |
---|---|
bin | 110001011010… |
… | …111111010101 |
3 | 220101012202020 |
4 | 301122333111 |
5 | 11304034410 |
6 | 1141403353 |
7 | 215056305 |
oct | 61327725 |
9 | 26335666 |
10 | 12955605 |
11 | 7349813 |
12 | 4409559 |
13 | 28b7c50 |
14 | 1a13605 |
15 | 120da70 |
hex | c5afd5 |
12955605 has 48 divisors (see below), whose sum is σ = 23412480. Its totient is φ = 6080256.
The previous prime is 12955543. The next prime is 12955609. The reversal of 12955605 is 50655921.
It is not a de Polignac number, because 12955605 - 27 = 12955477 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12955609) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163956 + ... + 164034.
It is an arithmetic number, because the mean of its divisors is an integer number (487760).
Almost surely, 212955605 is an apocalyptic number.
12955605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12955605 is a deficient number, since it is larger than the sum of its proper divisors (10456875).
12955605 is a wasteful number, since it uses less digits than its factorization.
12955605 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158 (or 129 counting only the distinct ones).
The product of its (nonzero) digits is 13500, while the sum is 33.
The square root of 12955605 is about 3599.3895315734. The cubic root of 12955605 is about 234.8655032408.
The spelling of 12955605 in words is "twelve million, nine hundred fifty-five thousand, six hundred five".
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