| Base | Representation |
|---|---|
| bin | 11010010001110… |
| … | …10011000111000 |
| 3 | 120100210111222220 |
| 4 | 31020322120320 |
| 5 | 422413040440 |
| 6 | 33512444040 |
| 7 | 5314465365 |
| oct | 1510723070 |
| 9 | 510714886 |
| 10 | 220440120 |
| 11 | 103483a1a |
| 12 | 619a9620 |
| 13 | 36892b54 |
| 14 | 213c346c |
| 15 | 145458d0 |
| hex | d23a638 |
220440120 has 64 divisors (see below), whose sum is σ = 663876000. Its totient is φ = 58556928.
The previous prime is 220440097. The next prime is 220440133. The reversal of 220440120 is 21044022.
It is a super-2 number, since 2×2204401202 = 97187693011228800, which contains 22 as substring.
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 220440120.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 28866 + ... + 35694.
Almost surely, 2220440120 is an apocalyptic number.
220440120 is a gapful number since it is divisible by the number (20) 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 220440120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331938000).
220440120 is an abundant number, since it is smaller than the sum of its proper divisors (443435880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220440120 is a wasteful number, since it uses less digits than its factorization.
220440120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7112 (or 7108 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 220440120 is about 14847.2260035335. The cubic root of 220440120 is about 604.0833693380.
Adding to 220440120 its reverse (21044022), we get a palindrome (241484142).
It can be divided in two parts, 2204 and 40120, that added together give a palindrome (42324).
The spelling of 220440120 in words is "two hundred twenty million, four hundred forty thousand, one hundred twenty".
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