Base | Representation |
---|---|
bin | 11001011001101… |
… | …11000101110100 |
3 | 112211221220211120 |
4 | 30230313011310 |
5 | 414022232310 |
6 | 33051103540 |
7 | 5165130450 |
oct | 1454670564 |
9 | 484856746 |
10 | 213086580 |
11 | aa311113 |
12 | 5b441bb0 |
13 | 351b9a45 |
14 | 2042b660 |
15 | 13a91b70 |
hex | cb37174 |
213086580 has 48 divisors (see below), whose sum is σ = 681878400. Its totient is φ = 48705408.
The previous prime is 213086567. The next prime is 213086597. The reversal of 213086580 is 85680312.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253255 + ... + 254094.
It is an arithmetic number, because the mean of its divisors is an integer number (14205800).
Almost surely, 2213086580 is an apocalyptic number.
213086580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
213086580 is an abundant number, since it is smaller than the sum of its proper divisors (468791820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213086580 is a wasteful number, since it uses less digits than its factorization.
213086580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 507368 (or 507366 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 33.
The square root of 213086580 is about 14597.4853998899. The cubic root of 213086580 is about 597.2901686706.
The spelling of 213086580 in words is "two hundred thirteen million, eighty-six thousand, five hundred eighty".
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