Base | Representation |
---|---|
bin | 110100100001100000100010… |
… | …101100000101101110110111 |
3 | 1010021220111020001022000220211 |
4 | 310201200202230011232313 |
5 | 220234210224333444343 |
6 | 2135144235225010251 |
7 | 66441164451252400 |
oct | 6441404254055667 |
9 | 1107814201260824 |
10 | 231001103031223 |
11 | 67671021524a48 |
12 | 21aa968a023987 |
13 | 9bb8406369255 |
14 | 4108727b049a7 |
15 | 1ba8d0736379d |
hex | d21822b05bb7 |
231001103031223 has 12 divisors (see below), whose sum is σ = 282858493508760. Its totient is φ = 187579843062192.
The previous prime is 231001103031221. The next prime is 231001103031269. The reversal of 231001103031223 is 322130301100132.
It is not a de Polignac number, because 231001103031223 - 21 = 231001103031221 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 231001103031194 and 231001103031203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231001103031221) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124060741836 + ... + 124060743697.
It is an arithmetic number, because the mean of its divisors is an integer number (23571541125730).
Almost surely, 2231001103031223 is an apocalyptic number.
231001103031223 is a deficient number, since it is larger than the sum of its proper divisors (51857390477537).
231001103031223 is a wasteful number, since it uses less digits than its factorization.
231001103031223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 248121485566 (or 248121485559 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 22.
Adding to 231001103031223 its reverse (322130301100132), we get a palindrome (553131404131355).
The spelling of 231001103031223 in words is "two hundred thirty-one trillion, one billion, one hundred three million, thirty-one thousand, two hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •