Base | Representation |
---|---|
bin | 100111110101… |
… | …1001011101110 |
3 | 1110022010112222 |
4 | 1033223023232 |
5 | 20321330004 |
6 | 2023355342 |
7 | 342346604 |
oct | 117531356 |
9 | 43263488 |
10 | 20886254 |
11 | 10876174 |
12 | 6bb2b52 |
13 | 443393c |
14 | 2ab9874 |
15 | 1c787be |
hex | 13eb2ee |
20886254 has 16 divisors (see below), whose sum is σ = 32810400. Its totient is φ = 9952800.
The previous prime is 20886223. The next prime is 20886259. The reversal of 20886254 is 45268802.
It is a super-3 number, since 3×208862543 (a number of 23 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20886259) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15404 + ... + 16704.
It is an arithmetic number, because the mean of its divisors is an integer number (2050650).
Almost surely, 220886254 is an apocalyptic number.
20886254 is a deficient number, since it is larger than the sum of its proper divisors (11924146).
20886254 is a wasteful number, since it uses less digits than its factorization.
20886254 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1675.
The product of its (nonzero) digits is 30720, while the sum is 35.
The square root of 20886254 is about 4570.1481376428. The cubic root of 20886254 is about 275.3933939970.
The spelling of 20886254 in words is "twenty million, eight hundred eighty-six thousand, two hundred fifty-four".
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