Base | Representation |
---|---|
bin | 10011110000011101… |
… | …011111011110100010 |
3 | 2000202110010120102102 |
4 | 103300131133132202 |
5 | 321421304212010 |
6 | 13425020250402 |
7 | 1350464101502 |
oct | 236035373642 |
9 | 60673116372 |
10 | 21214132130 |
11 | 8aa6908504 |
12 | 41406a0a02 |
13 | 20010a9709 |
14 | 1053653a02 |
15 | 842648ba5 |
hex | 4f075f7a2 |
21214132130 has 32 divisors (see below), whose sum is σ = 41129985600. Its totient is φ = 7852082112.
The previous prime is 21214132117. The next prime is 21214132141. The reversal of 21214132130 is 3123141212.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290125 + ... + 1306464.
It is an arithmetic number, because the mean of its divisors is an integer number (1285312050).
Almost surely, 221214132130 is an apocalyptic number.
21214132130 is a deficient number, since it is larger than the sum of its proper divisors (19915853470).
21214132130 is a wasteful number, since it uses less digits than its factorization.
21214132130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2596658.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 21214132130 its reverse (3123141212), we get a palindrome (24337273342).
The spelling of 21214132130 in words is "twenty-one billion, two hundred fourteen million, one hundred thirty-two thousand, one hundred thirty".
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