Base | Representation |
---|---|
bin | 1100011000110100001… |
… | …0011101110101110000 |
3 | 202100022202200102212001 |
4 | 3012031002131311300 |
5 | 11441323311201342 |
6 | 241433515143344 |
7 | 21242604006610 |
oct | 3061502356560 |
9 | 670282612761 |
10 | 212819631472 |
11 | 82290152058 |
12 | 352b4a44b54 |
13 | 170b821b326 |
14 | a42c8d8a40 |
15 | 5808b488b7 |
hex | 318d09dd70 |
212819631472 has 30 divisors (see below), whose sum is σ = 471254280504. Its totient is φ = 91206321120.
The previous prime is 212819631421. The next prime is 212819631539. The reversal of 212819631472 is 274136918212.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4860397 + ... + 4903987.
Almost surely, 2212819631472 is an apocalyptic number.
It is an amenable number.
212819631472 is an abundant number, since it is smaller than the sum of its proper divisors (258434649032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212819631472 is an frugal number, since it uses more digits than its factorization.
212819631472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87197 (or 43600 counting only the distinct ones).
The product of its digits is 290304, while the sum is 46.
The spelling of 212819631472 in words is "two hundred twelve billion, eight hundred nineteen million, six hundred thirty-one thousand, four hundred seventy-two".
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