Base | Representation |
---|---|
bin | 10110111000001000… |
… | …01100000010111111 |
3 | 1011200221210021002210 |
4 | 23130010030002333 |
5 | 200123144120111 |
6 | 5350422151503 |
7 | 613234306401 |
oct | 133404140277 |
9 | 34627707083 |
10 | 12282020031 |
11 | 5232975486 |
12 | 2469282593 |
13 | 1209708798 |
14 | 847270b71 |
15 | 4bd3cc0a6 |
hex | 2dc10c0bf |
12282020031 has 16 divisors (see below), whose sum is σ = 16795537920. Its totient is φ = 7980304800.
The previous prime is 12282020017. The next prime is 12282020083. The reversal of 12282020031 is 13002028221.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-12282020031 is a prime.
It is a super-2 number, since 2×122820200312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12282020431) 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, 231771 + ... + 279788.
It is an arithmetic number, because the mean of its divisors is an integer number (1049721120).
Almost surely, 212282020031 is an apocalyptic number.
12282020031 is a deficient number, since it is larger than the sum of its proper divisors (4513517889).
12282020031 is a wasteful number, since it uses less digits than its factorization.
12282020031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 511766.
The product of its (nonzero) digits is 384, while the sum is 21.
Adding to 12282020031 its reverse (13002028221), we get a palindrome (25284048252).
The spelling of 12282020031 in words is "twelve billion, two hundred eighty-two million, twenty thousand, thirty-one".
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