| Base | Representation |
|---|---|
| bin | 101110101110100110010… |
| … | …100110000110111101100 |
| 3 | 102100222111020112220221200 |
| 4 | 232232212110300313230 |
| 5 | 410102344020443040 |
| 6 | 10455101230125500 |
| 7 | 450665551260423 |
| oct | 56564624606754 |
| 9 | 12328436486850 |
| 10 | 3211131031020 |
| 11 | 1028918831270 |
| 12 | 43a409350890 |
| 13 | 1a3a67c63563 |
| 14 | b15c34362ba |
| 15 | 587deedb630 |
| hex | 2eba6530dec |
3211131031020 has 288 divisors, whose sum is σ = 10835204889600. Its totient is φ = 763245504000.
The previous prime is 3211131031013. The next prime is 3211131031079. The reversal of 3211131031020 is 201301311123.
3211131031020 is a `hidden beast` number, since 3 + 21 + 1 + 1 + 310 + 310 + 20 = 666.
It is a super-3 number, since 3×32111310310203 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 3211131030984 and 3211131031002.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25381881 + ... + 25508079.
It is an arithmetic number, because the mean of its divisors is an integer number (37622239200).
Almost surely, 23211131031020 is an apocalyptic number.
3211131031020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3211131031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5417602444800).
3211131031020 is an abundant number, since it is smaller than the sum of its proper divisors (7624073858580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3211131031020 is a wasteful number, since it uses less digits than its factorization.
3211131031020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 126477 (or 126472 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 3211131031020 its reverse (201301311123), we get a palindrome (3412432342143).
The spelling of 3211131031020 in words is "three trillion, two hundred eleven billion, one hundred thirty-one million, thirty-one thousand, twenty".
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