Base | Representation |
---|---|
bin | 111111110101101… |
… | …1101101000111110 |
3 | 12112021201221211011 |
4 | 1333223131220332 |
5 | 13341334200110 |
6 | 552320345434 |
7 | 104040356410 |
oct | 17753355076 |
9 | 5467657734 |
10 | 2142100030 |
11 | 9aa183504 |
12 | 4b947527a |
13 | 281a3b515 |
14 | 1646c89b0 |
15 | c80d148a |
hex | 7fadda3e |
2142100030 has 32 divisors (see below), whose sum is σ = 4410362880. Its totient is φ = 733808160.
The previous prime is 2142100027. The next prime is 2142100039. The reversal of 2142100030 is 300012412.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2142100039) 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, 73741 + ... + 98599.
It is an arithmetic number, because the mean of its divisors is an integer number (137823840).
Almost surely, 22142100030 is an apocalyptic number.
2142100030 is an abundant number, since it is smaller than the sum of its proper divisors (2268262850).
2142100030 is a wasteful number, since it uses less digits than its factorization.
2142100030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26104.
The product of its (nonzero) digits is 48, while the sum is 13.
The square root of 2142100030 is about 46282.8265126494. The cubic root of 2142100030 is about 1289.0801346412.
Adding to 2142100030 its reverse (300012412), we get a palindrome (2442112442).
The spelling of 2142100030 in words is "two billion, one hundred forty-two million, one hundred thousand, thirty".
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