| Base | Representation |
|---|---|
| bin | 111101000111… |
| … | …001111000100 |
| 3 | 1010010220212220 |
| 4 | 331013033010 |
| 5 | 13100123140 |
| 6 | 1331212340 |
| 7 | 253112523 |
| oct | 75071704 |
| 9 | 33126786 |
| 10 | 16020420 |
| 11 | 9052419 |
| 12 | 54470b0 |
| 13 | 341bc50 |
| 14 | 21b04ba |
| 15 | 1616bd0 |
| hex | f473c4 |
16020420 has 192 divisors, whose sum is σ = 54190080. Its totient is φ = 3497472.
The previous prime is 16020419. The next prime is 16020421. The reversal of 16020420 is 2402061.
It is an interprime number because it is at equal distance from previous prime (16020419) and next prime (16020421).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 16020420.
It is not an unprimeable number, because it can be changed into a prime (16020421) 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 63 ways as a sum of consecutive naturals, for example, 340837 + ... + 340883.
It is an arithmetic number, because the mean of its divisors is an integer number (282240).
Almost surely, 216020420 is an apocalyptic number.
16020420 is a gapful number since it is divisible by the number (10) 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 16020420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27095040).
16020420 is an abundant number, since it is smaller than the sum of its proper divisors (38169660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16020420 is a wasteful number, since it uses less digits than its factorization.
16020420 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 114 (or 112 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 16020420 is about 4002.5516861122. The cubic root of 16020420 is about 252.0913626900.
Adding to 16020420 its reverse (2402061), we get a palindrome (18422481).
The spelling of 16020420 in words is "sixteen million, twenty thousand, four hundred twenty".
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