Base | Representation |
---|---|
bin | 11101011010011001100… |
… | …000010101100101110100 |
3 | 21011020002121020111220020 |
4 | 131122121200111211310 |
5 | 231103414231121322 |
6 | 4144310413205140 |
7 | 266012316462465 |
oct | 35323140254564 |
9 | 7136077214806 |
10 | 2021210020212 |
11 | 70a2103aaa09 |
12 | 2878831907b0 |
13 | 1187a38312a6 |
14 | 6db81752d6c |
15 | 3789a0b305c |
hex | 1d699815974 |
2021210020212 has 48 divisors (see below), whose sum is σ = 4972243315200. Its totient is φ = 637265270880.
The previous prime is 2021210020199. The next prime is 2021210020217. The reversal of 2021210020212 is 2120200121202.
It is a super-3 number, since 3×20212100202123 (a number of 38 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2021210020191 and 2021210020200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2021210020217) 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, 6880662 + ... + 7168397.
It is an arithmetic number, because the mean of its divisors is an integer number (103588402400).
Almost surely, 22021210020212 is an apocalyptic number.
It is an amenable number.
2021210020212 is an abundant number, since it is smaller than the sum of its proper divisors (2951033294988).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2021210020212 is a wasteful number, since it uses less digits than its factorization.
2021210020212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14049716 (or 14049714 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 2021210020212 its reverse (2120200121202), we get a palindrome (4141410141414).
The spelling of 2021210020212 in words is "two trillion, twenty-one billion, two hundred ten million, twenty thousand, two hundred twelve".
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