Base | Representation |
---|---|
bin | 11001011010000… |
… | …00011110010010 |
3 | 112212000212112220 |
4 | 30231000132102 |
5 | 414030000020 |
6 | 33052001510 |
7 | 5165350500 |
oct | 1455003622 |
9 | 485025486 |
10 | 213125010 |
11 | aa337a7a |
12 | 5b460296 |
13 | 35201397 |
14 | 2043b670 |
15 | 13a9d240 |
hex | cb40792 |
213125010 has 48 divisors (see below), whose sum is σ = 595014336. Its totient is φ = 48713952.
The previous prime is 213124999. The next prime is 213125021. The reversal of 213125010 is 10521312.
It is an interprime number because it is at equal distance from previous prime (213124999) and next prime (213125021).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71022 + ... + 73961.
It is an arithmetic number, because the mean of its divisors is an integer number (12396132).
Almost surely, 2213125010 is an apocalyptic number.
213125010 is an abundant number, since it is smaller than the sum of its proper divisors (381889326).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213125010 is a wasteful number, since it uses less digits than its factorization.
213125010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 145007 (or 145000 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 213125010 is about 14598.8016631503. The cubic root of 213125010 is about 597.3260734523.
Adding to 213125010 its reverse (10521312), we get a palindrome (223646322).
The spelling of 213125010 in words is "two hundred thirteen million, one hundred twenty-five thousand, ten".
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