| Base | Representation |
|---|---|
| bin | 1100010010100100010… |
| … | …0000001111110010100 |
| 3 | 202011222212112012002200 |
| 4 | 3010221010001332110 |
| 5 | 11424404413220040 |
| 6 | 240555240404500 |
| 7 | 21153206052012 |
| oct | 3045104017624 |
| 9 | 664885465080 |
| 10 | 211142320020 |
| 11 | 815aa376145 |
| 12 | 34b07176730 |
| 13 | 16bab886b48 |
| 14 | a30dc3b8b2 |
| 15 | 575b777630 |
| hex | 3129101f94 |
211142320020 has 144 divisors (see below), whose sum is σ = 647287175808. Its totient is φ = 55705708800.
The previous prime is 211142320019. The next prime is 211142320021. The reversal of 211142320020 is 20023241112.
It is a happy number.
211142320020 is a `hidden beast` number, since 21 + 1 + 1 + 423 + 200 + 20 = 666.
It is an interprime number because it is at equal distance from previous prime (211142320019) and next prime (211142320021).
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 = 211142319975 and 211142320002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (211142320021) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30302577 + ... + 30309543.
It is an arithmetic number, because the mean of its divisors is an integer number (4495049832).
Almost surely, 2211142320020 is an apocalyptic number.
211142320020 is a gapful number since it is divisible by the number (20) 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 211142320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323643587904).
211142320020 is an abundant number, since it is smaller than the sum of its proper divisors (436144855788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211142320020 is a wasteful number, since it uses less digits than its factorization.
211142320020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8750 (or 8745 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
Adding to 211142320020 its reverse (20023241112), we get a palindrome (231165561132).
The spelling of 211142320020 in words is "two hundred eleven billion, one hundred forty-two million, three hundred twenty thousand, twenty".
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