Base | Representation |
---|---|
bin | 11001011100011… |
… | …01010001011100 |
3 | 112212121212001122 |
4 | 30232031101130 |
5 | 414120031310 |
6 | 33102430112 |
7 | 5201130554 |
oct | 1456152134 |
9 | 485555048 |
10 | 213439580 |
11 | aa532352 |
12 | 5b592338 |
13 | 352b1613 |
14 | 204c0164 |
15 | 13b11555 |
hex | cb8d45c |
213439580 has 48 divisors (see below), whose sum is σ = 458166240. Its totient is φ = 83497728.
The previous prime is 213439579. The next prime is 213439591. The reversal of 213439580 is 85934312.
213439580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 213439580.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326534 + ... + 327186.
It is an arithmetic number, because the mean of its divisors is an integer number (9545130).
Almost surely, 2213439580 is an apocalyptic number.
213439580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
213439580 is an abundant number, since it is smaller than the sum of its proper divisors (244726660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213439580 is a wasteful number, since it uses less digits than its factorization.
213439580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 998 (or 996 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 35.
The square root of 213439580 is about 14609.5715200686. The cubic root of 213439580 is about 597.6198110607.
It can be divided in two parts, 2134 and 39580, that added together give a palindrome (41714).
The spelling of 213439580 in words is "two hundred thirteen million, four hundred thirty-nine thousand, five hundred eighty".
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