Base | Representation |
---|---|
bin | 100000011100110111100… |
… | …011010100001011101100 |
3 | 21220012001221010010111100 |
4 | 200130313203110023230 |
5 | 243014040111444322 |
6 | 4424242420323100 |
7 | 320053655336661 |
oct | 40346743241354 |
9 | 7805057103440 |
10 | 2230020031212 |
11 | 78a823197836 |
12 | 300239243490 |
13 | 1323a014000c |
14 | 79d0d911a68 |
15 | 3d01bbd5dac |
hex | 207378d42ec |
2230020031212 has 72 divisors (see below), whose sum is σ = 5678825351472. Its totient is φ = 737825241600.
The previous prime is 2230020031193. The next prime is 2230020031273. The reversal of 2230020031212 is 2121300200322.
2230020031212 is a `hidden beast` number, since 22 + 300 + 20 + 0 + 312 + 12 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
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, 50338512 + ... + 50382792.
It is an arithmetic number, because the mean of its divisors is an integer number (78872574326).
Almost surely, 22230020031212 is an apocalyptic number.
It is an amenable number.
2230020031212 is an abundant number, since it is smaller than the sum of its proper divisors (3448805320260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2230020031212 is a wasteful number, since it uses less digits than its factorization.
2230020031212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54639 (or 54634 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 2230020031212 its reverse (2121300200322), we get a palindrome (4351320231534).
The spelling of 2230020031212 in words is "two trillion, two hundred thirty billion, twenty million, thirty-one thousand, two hundred twelve".
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