| Base | Representation |
|---|---|
| bin | 11010001111010… |
| … | …01010001000000 |
| 3 | 120100011122012020 |
| 4 | 31013221101000 |
| 5 | 422321422330 |
| 6 | 33501401440 |
| 7 | 5311612551 |
| oct | 1507512100 |
| 9 | 510148166 |
| 10 | 220107840 |
| 11 | 103277307 |
| 12 | 61869280 |
| 13 | 367a7834 |
| 14 | 21338328 |
| 15 | 144cc210 |
| hex | d1e9440 |
220107840 has 112 divisors (see below), whose sum is σ = 740005632. Its totient is φ = 55238656.
The previous prime is 220107829. The next prime is 220107851. The reversal of 220107840 is 48701022.
It is an interprime number because it is at equal distance from previous prime (220107829) and next prime (220107851).
It is a super-2 number, since 2×2201078402 = 96894922458931200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a self number, because there is not a number n which added to its sum of digits gives 220107840.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 9577 + ... + 23063.
Almost surely, 2220107840 is an apocalyptic number.
220107840 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 220107840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370002816).
220107840 is an abundant number, since it is smaller than the sum of its proper divisors (519897792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
220107840 is a wasteful number, since it uses less digits than its factorization.
220107840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13524 (or 13514 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 24.
The square root of 220107840 is about 14836.0318144711. The cubic root of 220107840 is about 603.7796953961.
Adding to 220107840 its reverse (48701022), we get a palindrome (268808862).
The spelling of 220107840 in words is "two hundred twenty million, one hundred seven thousand, eight hundred forty".
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