Base | Representation |
---|---|
bin | 111111010001100… |
… | …0110111011100010 |
3 | 12110222001022110022 |
4 | 1332203012323202 |
5 | 13322010221032 |
6 | 550402033442 |
7 | 103420221041 |
oct | 17643067342 |
9 | 5428038408 |
10 | 2123132642 |
11 | 99a4a8a84 |
12 | 4b3048882 |
13 | 27ab2a107 |
14 | 161d8c558 |
15 | c65d6512 |
hex | 7e8c6ee2 |
2123132642 has 4 divisors (see below), whose sum is σ = 3184698966. Its totient is φ = 1061566320.
The previous prime is 2123132587. The next prime is 2123132653. The reversal of 2123132642 is 2462313212.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 1432546801 + 690585841 = 37849^2 + 26279^2 .
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530783159 + ... + 530783162.
Almost surely, 22123132642 is an apocalyptic number.
2123132642 is a deficient number, since it is larger than the sum of its proper divisors (1061566324).
2123132642 is a wasteful number, since it uses less digits than its factorization.
2123132642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1061566323.
The product of its digits is 3456, while the sum is 26.
The square root of 2123132642 is about 46077.4634935562. The cubic root of 2123132642 is about 1285.2640964753.
Adding to 2123132642 its reverse (2462313212), we get a palindrome (4585445854).
The spelling of 2123132642 in words is "two billion, one hundred twenty-three million, one hundred thirty-two thousand, six hundred forty-two".
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