Base | Representation |
---|---|
bin | 100101100101… |
… | …1100100110100 |
3 | 1101002021120210 |
4 | 1023023210310 |
5 | 20021130322 |
6 | 1542225420 |
7 | 326342226 |
oct | 113134464 |
9 | 41067523 |
10 | 19708212 |
11 | 10141087 |
12 | 6725270 |
13 | 4110684 |
14 | 2890416 |
15 | 1ae470c |
hex | 12cb934 |
19708212 has 24 divisors (see below), whose sum is σ = 46128096. Its totient is φ = 6549088.
The previous prime is 19708189. The next prime is 19708259. The reversal of 19708212 is 21280791.
It is a self number, because there is not a number n which added to its sum of digits gives 19708212.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1798 + ... + 6530.
It is an arithmetic number, because the mean of its divisors is an integer number (1922004).
Almost surely, 219708212 is an apocalyptic number.
19708212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
19708212 is an abundant number, since it is smaller than the sum of its proper divisors (26419884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19708212 is a wasteful number, since it uses less digits than its factorization.
19708212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5087 (or 5085 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 30.
The square root of 19708212 is about 4439.3932017788. The cubic root of 19708212 is about 270.1152320208.
The spelling of 19708212 in words is "nineteen million, seven hundred eight thousand, two hundred twelve".
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