Base | Representation |
---|---|
bin | 1101011101101111010… |
… | …0101111000011101110 |
3 | 211010002011211122102010 |
4 | 3113123310233003232 |
5 | 12242221223114410 |
6 | 254133442142050 |
7 | 22466233422015 |
oct | 3273364570356 |
9 | 733064748363 |
10 | 231321301230 |
11 | 8a114931418 |
12 | 389b9051926 |
13 | 18a76369a06 |
14 | b2a5bd3a7c |
15 | 603d099c20 |
hex | 35dbd2f0ee |
231321301230 has 16 divisors (see below), whose sum is σ = 555171123024. Its totient is φ = 61685680320.
The previous prime is 231321301151. The next prime is 231321301261. The reversal of 231321301230 is 32103123132.
It is a junction number, because it is equal to n+sod(n) for n = 231321301197 and 231321301206.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855354991 + ... + 3855355050.
It is an arithmetic number, because the mean of its divisors is an integer number (34698195189).
Almost surely, 2231321301230 is an apocalyptic number.
231321301230 is an abundant number, since it is smaller than the sum of its proper divisors (323849821794).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231321301230 is a wasteful number, since it uses less digits than its factorization.
231321301230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7710710051.
The product of its (nonzero) digits is 648, while the sum is 21.
Adding to 231321301230 its reverse (32103123132), we get a palindrome (263424424362).
The spelling of 231321301230 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred one thousand, two hundred thirty".
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