Base | Representation |
---|---|
bin | 11101111010100100… |
… | …101100100010010111 |
3 | 10001220120201120212122 |
4 | 131322210230202113 |
5 | 1011241012223111 |
6 | 22431205010155 |
7 | 2214664534400 |
oct | 357244544227 |
9 | 101816646778 |
10 | 32121211031 |
11 | 1269364a2a8 |
12 | 62853b395b |
13 | 304b99b660 |
14 | 17aa0569a7 |
15 | c7ee80cdb |
hex | 77a92c897 |
32121211031 has 12 divisors (see below), whose sum is σ = 40239759672. Its totient is φ = 25414584048.
The previous prime is 32121211019. The next prime is 32121211037. The reversal of 32121211031 is 13011212123.
It is not a de Polignac number, because 32121211031 - 214 = 32121194647 is a prime.
It is a super-2 number, since 2×321212110312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (32121211037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25212245 + ... + 25213518.
It is an arithmetic number, because the mean of its divisors is an integer number (3353313306).
Almost surely, 232121211031 is an apocalyptic number.
32121211031 is a deficient number, since it is larger than the sum of its proper divisors (8118548641).
32121211031 is a wasteful number, since it uses less digits than its factorization.
32121211031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50425790 (or 50425783 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 32121211031 its reverse (13011212123), we get a palindrome (45132423154).
The spelling of 32121211031 in words is "thirty-two billion, one hundred twenty-one million, two hundred eleven thousand, thirty-one".
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