Base | Representation |
---|---|
bin | 111011010000101… |
… | …0101011110100100 |
3 | 12010120121201220011 |
4 | 1312201111132210 |
5 | 13033020401322 |
6 | 525151220004 |
7 | 100163355640 |
oct | 16641253644 |
9 | 5116551804 |
10 | 1988450212 |
11 | 930479091 |
12 | 475b17604 |
13 | 258c62278 |
14 | 14c12dc20 |
15 | b9880677 |
hex | 768557a4 |
1988450212 has 24 divisors (see below), whose sum is σ = 4031382656. Its totient is φ = 840518208.
The previous prime is 1988450207. The next prime is 1988450231. The reversal of 1988450212 is 2120548891.
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, 484368 + ... + 488455.
Almost surely, 21988450212 is an apocalyptic number.
It is an amenable number.
1988450212 is an abundant number, since it is smaller than the sum of its proper divisors (2042932444).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1988450212 is a wasteful number, since it uses less digits than its factorization.
1988450212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 972907 (or 972905 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 40.
The square root of 1988450212 is about 44592.0420254556. The cubic root of 1988450212 is about 1257.4910627313.
The spelling of 1988450212 in words is "one billion, nine hundred eighty-eight million, four hundred fifty thousand, two hundred twelve".
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