Base | Representation |
---|---|
bin | 11001001001110… |
… | …01111010010100 |
3 | 112201000221221010 |
4 | 30210321322110 |
5 | 413004012410 |
6 | 32534252220 |
7 | 5141323131 |
oct | 1444717224 |
9 | 481027833 |
10 | 211000980 |
11 | a9117183 |
12 | 5a7b7070 |
13 | 34939668 |
14 | 20047588 |
15 | 137cdc20 |
hex | c939e94 |
211000980 has 48 divisors (see below), whose sum is σ = 591433920. Its totient is φ = 56206848.
The previous prime is 211000967. The next prime is 211000981. The reversal of 211000980 is 89000112.
211000980 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211000981) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105631 + ... + 107609.
It is an arithmetic number, because the mean of its divisors is an integer number (12321540).
Almost surely, 2211000980 is an apocalyptic number.
211000980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
211000980 is an abundant number, since it is smaller than the sum of its proper divisors (380432940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211000980 is a wasteful number, since it uses less digits than its factorization.
211000980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3768 (or 3766 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 21.
The square root of 211000980 is about 14525.8727792859. The cubic root of 211000980 is about 595.3351029989.
It can be divided in two parts, 21 and 1000980, that added together give a palindrome (1001001).
The spelling of 211000980 in words is "two hundred eleven million, nine hundred eighty", and thus it is an aban number.
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