Base | Representation |
---|---|
bin | 110011011100… |
… | …101100101010 |
3 | 221101012112110 |
4 | 303130230222 |
5 | 11423040030 |
6 | 1201023150 |
7 | 222431244 |
oct | 63345452 |
9 | 27335473 |
10 | 13486890 |
11 | 768199a |
12 | 4624ab6 |
13 | 2a42a11 |
14 | 1b11094 |
15 | 12b61b0 |
hex | cdcb2a |
13486890 has 16 divisors (see below), whose sum is σ = 32368608. Its totient is φ = 3596496.
The previous prime is 13486871. The next prime is 13486927. The reversal of 13486890 is 9868431.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 224752 + ... + 224811.
It is an arithmetic number, because the mean of its divisors is an integer number (2023038).
Almost surely, 213486890 is an apocalyptic number.
13486890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13486890 is an abundant number, since it is smaller than the sum of its proper divisors (18881718).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13486890 is a wasteful number, since it uses less digits than its factorization.
13486890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 449573.
The product of its (nonzero) digits is 41472, while the sum is 39.
The square root of 13486890 is about 3672.4501358085. The cubic root of 13486890 is about 238.0330556916.
The spelling of 13486890 in words is "thirteen million, four hundred eighty-six thousand, eight hundred ninety".
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