Base | Representation |
---|---|
bin | 1000011100101000010100 |
3 | 11011111121120 |
4 | 20130220110 |
5 | 1031330140 |
6 | 115243540 |
7 | 24552015 |
oct | 10345024 |
9 | 4144546 |
10 | 2214420 |
11 | 12827aa |
12 | 8a95b0 |
13 | 5c6c10 |
14 | 41900c |
15 | 2db1d0 |
hex | 21ca14 |
2214420 has 96 divisors (see below), whose sum is σ = 7112448. Its totient is φ = 509952.
The previous prime is 2214383. The next prime is 2214473. The reversal of 2214420 is 244122.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an Ulam number.
It is a self number, because there is not a number n which added to its sum of digits gives 2214420.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13177 + ... + 13343.
It is an arithmetic number, because the mean of its divisors is an integer number (74088).
22214420 is an apocalyptic number.
2214420 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 2214420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3556224).
2214420 is an abundant number, since it is smaller than the sum of its proper divisors (4898028).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2214420 is a wasteful number, since it uses less digits than its factorization.
2214420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 209 (or 207 counting only the distinct ones).
The product of its (nonzero) digits is 128, while the sum is 15.
The square root of 2214420 is about 1488.0927390455. The cubic root of 2214420 is about 130.3426856158.
Adding to 2214420 its reverse (244122), we get a palindrome (2458542).
The spelling of 2214420 in words is "two million, two hundred fourteen thousand, four hundred twenty".
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