| Base | Representation |
|---|---|
| bin | 100111010100… |
| … | …0011110100000 |
| 3 | 1102210020202100 |
| 4 | 1032220132200 |
| 5 | 20234104044 |
| 6 | 2013450400 |
| 7 | 340131165 |
| oct | 116503640 |
| 9 | 42706670 |
| 10 | 20613024 |
| 11 | 106a9963 |
| 12 | 6aa0a00 |
| 13 | 4369473 |
| 14 | 2a4806c |
| 15 | 1c22869 |
| hex | 13a87a0 |
20613024 has 72 divisors (see below), whose sum is σ = 61719840. Its totient is φ = 6507648.
The previous prime is 20612957. The next prime is 20613029. The reversal of 20613024 is 42031602.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (72).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 20612988 and 20613006.
It is not an unprimeable number, because it can be changed into a prime (20613029) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3589 + ... + 7355.
It is an arithmetic number, because the mean of its divisors is an integer number (857220).
Almost surely, 220613024 is an apocalyptic number.
20613024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20613024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30859920).
20613024 is an abundant number, since it is smaller than the sum of its proper divisors (41106816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20613024 is a wasteful number, since it uses less digits than its factorization.
20613024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3802 (or 3791 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 20613024 is about 4540.1568254852. The cubic root of 20613024 is about 274.1872377137.
Adding to 20613024 its reverse (42031602), we get a palindrome (62644626).
The spelling of 20613024 in words is "twenty million, six hundred thirteen thousand, twenty-four".
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