| Base | Representation |
|---|---|
| bin | 100111001010… |
| … | …1100100110110 |
| 3 | 1102122022120000 |
| 4 | 1032111210312 |
| 5 | 20224114411 |
| 6 | 2012052130 |
| 7 | 336356400 |
| oct | 116254466 |
| 9 | 42568500 |
| 10 | 20535606 |
| 11 | 10656783 |
| 12 | 6a64046 |
| 13 | 4340160 |
| 14 | 2a27b70 |
| 15 | 1c09956 |
| hex | 1395936 |
20535606 has 120 divisors (see below), whose sum is σ = 57934800. Its totient is φ = 5388768.
The previous prime is 20535601. The next prime is 20535607. The reversal of 20535606 is 60653502.
20535606 is a `hidden beast` number, since 2 + 0 + 53 + 5 + 606 = 666.
It is a super-2 number, since 2×205356062 = 843422227574472, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a self number, because there is not a number n which added to its sum of digits gives 20535606.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20535601) 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 59 ways as a sum of consecutive naturals, for example, 103095 + ... + 103293.
It is an arithmetic number, because the mean of its divisors is an integer number (482790).
Almost surely, 220535606 is an apocalyptic number.
20535606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 20535606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28967400).
20535606 is an abundant number, since it is smaller than the sum of its proper divisors (37399194).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20535606 is a wasteful number, since it uses less digits than its factorization.
20535606 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 240 (or 224 counting only the distinct ones).
The product of its (nonzero) digits is 5400, while the sum is 27.
The square root of 20535606 is about 4531.6228881053. The cubic root of 20535606 is about 273.8435446867.
The spelling of 20535606 in words is "twenty million, five hundred thirty-five thousand, six hundred six".
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