Base | Representation |
---|---|
bin | 111111110100000… |
… | …0100100000011111 |
3 | 12112020001202211100 |
4 | 1333220010200133 |
5 | 13341122220110 |
6 | 552245324143 |
7 | 104026663443 |
oct | 17750044037 |
9 | 5466052740 |
10 | 2141210655 |
11 | 9a9726291 |
12 | 4b9106653 |
13 | 2817b976c |
14 | 164536823 |
15 | c7ea7bc0 |
hex | 7fa0481f |
2141210655 has 24 divisors (see below), whose sum is σ = 3712896720. Its totient is φ = 1141528320.
The previous prime is 2141210651. The next prime is 2141210693. The reversal of 2141210655 is 5560121412.
2141210655 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 2 + 1 + 0 + 655 = 666.
It is not a de Polignac number, because 2141210655 - 22 = 2141210651 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2141210651) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127975 + ... + 143735.
It is an arithmetic number, because the mean of its divisors is an integer number (154704030).
Almost surely, 22141210655 is an apocalyptic number.
2141210655 is a deficient number, since it is larger than the sum of its proper divisors (1571686065).
2141210655 is a wasteful number, since it uses less digits than its factorization.
2141210655 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18791 (or 18788 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 27.
The square root of 2141210655 is about 46273.2174697200. The cubic root of 2141210655 is about 1288.9017062558.
The spelling of 2141210655 in words is "two billion, one hundred forty-one million, two hundred ten thousand, six hundred fifty-five".
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