Base | Representation |
---|---|
bin | 11001001011010… |
… | …11110101110000 |
3 | 112201102100110111 |
4 | 30211223311300 |
5 | 413032033423 |
6 | 32542511104 |
7 | 5143134304 |
oct | 1445536560 |
9 | 481370414 |
10 | 211205488 |
11 | a924689a |
12 | 5a895494 |
13 | 349ab780 |
14 | 2009bd04 |
15 | 1381e60d |
hex | c96bd70 |
211205488 has 40 divisors (see below), whose sum is σ = 441721728. Its totient is φ = 97251072.
The previous prime is 211205483. The next prime is 211205513. The reversal of 211205488 is 884502112.
It is a super-2 number, since 2×2112054882 = 89215516322636288, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211205483) 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, 114945 + ... + 116767.
Almost surely, 2211205488 is an apocalyptic number.
It is an amenable number.
211205488 is an abundant number, since it is smaller than the sum of its proper divisors (230516240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211205488 is a wasteful number, since it uses less digits than its factorization.
211205488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2401 (or 2395 counting only the distinct ones).
The product of its (nonzero) digits is 5120, while the sum is 31.
The square root of 211205488 is about 14532.9105137271. The cubic root of 211205488 is about 595.5273793217.
The spelling of 211205488 in words is "two hundred eleven million, two hundred five thousand, four hundred eighty-eight".
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