Base | Representation |
---|---|
bin | 10001111010101111010… |
… | …100011101010001010110 |
3 | 11100201012112222121002010 |
4 | 101322233110131101112 |
5 | 130133201304202410 |
6 | 2341352523325050 |
7 | 154646545334040 |
oct | 21725724352126 |
9 | 4321175877063 |
10 | 1231302022230 |
11 | 435212989755 |
12 | 17a774680786 |
13 | 8c15a645357 |
14 | 4384985ca90 |
15 | 22067ca3c20 |
hex | 11eaf51d456 |
1231302022230 has 32 divisors (see below), whose sum is σ = 3377285547264. Its totient is φ = 281440462176.
The previous prime is 1231302022217. The next prime is 1231302022253. The reversal of 1231302022230 is 322202031321.
It is a happy number.
It is a super-2 number, since 2×12313020222302 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 1231302022197 and 1231302022206.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2931671272 + ... + 2931671691.
It is an arithmetic number, because the mean of its divisors is an integer number (105540173352).
Almost surely, 21231302022230 is an apocalyptic number.
1231302022230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1231302022230 is an abundant number, since it is smaller than the sum of its proper divisors (2145983525034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1231302022230 is a wasteful number, since it uses less digits than its factorization.
1231302022230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5863342980.
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 1231302022230 its reverse (322202031321), we get a palindrome (1553504053551).
Subtracting from 1231302022230 its reverse (322202031321), we obtain a palindrome (909099990909).
The spelling of 1231302022230 in words is "one trillion, two hundred thirty-one billion, three hundred two million, twenty-two thousand, two hundred thirty".
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