Base | Representation |
---|---|
bin | 1000010000000001… |
… | …0001110100110000 |
3 | 12201100021122221220 |
4 | 2010000101310300 |
5 | 14013423244040 |
6 | 1003431545040 |
7 | 105611226534 |
oct | 20400216460 |
9 | 5640248856 |
10 | 2214665520 |
11 | a37136a91 |
12 | 51982b180 |
13 | 293a97992 |
14 | 1701b7bc4 |
15 | ce6672d0 |
hex | 84011d30 |
2214665520 has 80 divisors (see below), whose sum is σ = 6885175392. Its totient is φ = 588881920.
The previous prime is 2214665419. The next prime is 2214665527. The reversal of 2214665520 is 255664122.
It is a tau number, because it is divible by the number of its divisors (80).
It is not an unprimeable number, because it can be changed into a prime (2214665527) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71650 + ... + 97790.
Almost surely, 22214665520 is an apocalyptic number.
2214665520 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 2214665520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3442587696).
2214665520 is an abundant number, since it is smaller than the sum of its proper divisors (4670509872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2214665520 is a wasteful number, since it uses less digits than its factorization.
2214665520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26510 (or 26504 counting only the distinct ones).
The product of its (nonzero) digits is 28800, while the sum is 33.
The square root of 2214665520 is about 47060.2328936014. The cubic root of 2214665520 is about 1303.4750261126.
The spelling of 2214665520 in words is "two billion, two hundred fourteen million, six hundred sixty-five thousand, five hundred twenty".
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