Base | Representation |
---|---|
bin | 11001010010000… |
… | …11001010111000 |
3 | 112210002011022212 |
4 | 30221003022320 |
5 | 413243244410 |
6 | 33013434252 |
7 | 5153466563 |
oct | 1451031270 |
9 | 483064285 |
10 | 212087480 |
11 | a9799510 |
12 | 5b03b988 |
13 | 34c2a067 |
14 | 2024b4da |
15 | 13945b05 |
hex | ca432b8 |
212087480 has 32 divisors (see below), whose sum is σ = 520579440. Its totient is φ = 77122560.
The previous prime is 212087479. The next prime is 212087489. The reversal of 212087480 is 84780212.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212087489) 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, 240569 + ... + 241448.
Almost surely, 2212087480 is an apocalyptic number.
212087480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212087480 is an abundant number, since it is smaller than the sum of its proper divisors (308491960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212087480 is a wasteful number, since it uses less digits than its factorization.
212087480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 482039 (or 482035 counting only the distinct ones).
The product of its (nonzero) digits is 7168, while the sum is 32.
The square root of 212087480 is about 14563.2235442570. The cubic root of 212087480 is about 596.3552001864.
The spelling of 212087480 in words is "two hundred twelve million, eighty-seven thousand, four hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •