Base | Representation |
---|---|
bin | 11101111010100100… |
… | …010110110011101111 |
3 | 10001220120120001210100 |
4 | 131322210112303233 |
5 | 1011241001401111 |
6 | 22431203042143 |
7 | 2214664014045 |
oct | 357244266357 |
9 | 101816501710 |
10 | 32121122031 |
11 | 12693599449 |
12 | 6285370353 |
13 | 304b969cab |
14 | 17aa032395 |
15 | c7ee64756 |
hex | 77a916cef |
32121122031 has 24 divisors (see below), whose sum is σ = 47173684064. Its totient is φ = 21055930560.
The previous prime is 32121122017. The next prime is 32121122081. The reversal of 32121122031 is 13022112123.
It is not a de Polignac number, because 32121122031 - 29 = 32121121519 is a prime.
It is a super-2 number, since 2×321211220312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 32121121995 and 32121122013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (32121122081) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1988670 + ... + 2004756.
Almost surely, 232121122031 is an apocalyptic number.
32121122031 is a deficient number, since it is larger than the sum of its proper divisors (15052562033).
32121122031 is a wasteful number, since it uses less digits than its factorization.
32121122031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19791 (or 19788 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 32121122031 its reverse (13022112123), we get a palindrome (45143234154).
The spelling of 32121122031 in words is "thirty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, thirty-one".
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