Base | Representation |
---|---|
bin | 11001011111110… |
… | …00000110000101 |
3 | 112220110002021000 |
4 | 30233320012011 |
5 | 414223032000 |
6 | 33120043513 |
7 | 5204632320 |
oct | 1457700605 |
9 | 486402230 |
10 | 213877125 |
11 | aa801060 |
12 | 5b763599 |
13 | 35405817 |
14 | 205957b7 |
15 | 13b9b000 |
hex | cbf8185 |
213877125 has 128 divisors (see below), whose sum is σ = 493608960. Its totient is φ = 88776000.
The previous prime is 213877099. The next prime is 213877151. The reversal of 213877125 is 521778312.
213877125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (213877099) and next prime (213877151).
It is not a de Polignac number, because 213877125 - 27 = 213876997 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 213877125.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 259464 + ... + 260286.
It is an arithmetic number, because the mean of its divisors is an integer number (3856320).
Almost surely, 2213877125 is an apocalyptic number.
213877125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
213877125 is an abundant number, since it is smaller than the sum of its proper divisors (279731835).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213877125 is a wasteful number, since it uses less digits than its factorization.
213877125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 865 (or 849 counting only the distinct ones).
The product of its digits is 23520, while the sum is 36.
The square root of 213877125 is about 14624.5384542556. The cubic root of 213877125 is about 598.0279001386.
The spelling of 213877125 in words is "two hundred thirteen million, eight hundred seventy-seven thousand, one hundred twenty-five".
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