Base | Representation |
---|---|
bin | 1000011100111000111000 |
3 | 11011120001211 |
4 | 20130320320 |
5 | 1031343410 |
6 | 115252504 |
7 | 24555061 |
oct | 10347070 |
9 | 4146054 |
10 | 2215480 |
11 | 1283583 |
12 | 8aa134 |
13 | 5c7547 |
14 | 419568 |
15 | 2db68a |
hex | 21ce38 |
2215480 has 32 divisors (see below), whose sum is σ = 5045040. Its totient is φ = 875520.
The previous prime is 2215471. The next prime is 2215487. The reversal of 2215480 is 845122.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2215487) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3595 + ... + 4165.
22215480 is an apocalyptic number.
2215480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2215480 is an abundant number, since it is smaller than the sum of its proper divisors (2829560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2215480 is a wasteful number, since it uses less digits than its factorization.
2215480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 679 (or 675 counting only the distinct ones).
The product of its (nonzero) digits is 640, while the sum is 22.
The square root of 2215480 is about 1488.4488570320. The cubic root of 2215480 is about 130.3634798052.
The spelling of 2215480 in words is "two million, two hundred fifteen thousand, four hundred eighty".
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