| Base | Representation |
|---|---|
| bin | 1000010100000000… |
| … | …0111101101101000 |
| 3 | 12202111202221011100 |
| 4 | 2011000013231220 |
| 5 | 14032214320240 |
| 6 | 1005230401400 |
| 7 | 106203412131 |
| oct | 20500075550 |
| 9 | 5674687140 |
| 10 | 2231401320 |
| 11 | a45627925 |
| 12 | 523360260 |
| 13 | 2973a7415 |
| 14 | 1724d2c88 |
| 15 | d0d70e30 |
| hex | 85007b68 |
2231401320 has 96 divisors (see below), whose sum is σ = 7266584520. Its totient is φ = 593848320.
The previous prime is 2231401313. The next prime is 2231401339. The reversal of 2231401320 is 231041322.
2231401320 is a `hidden beast` number, since 2 + 231 + 401 + 32 + 0 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 2127238884 + 104162436 = 46122^2 + 10206^2 .
It is a super-3 number, since 3×22314013203 (a number of 29 digits) contains 333 as substring.
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 = 2231401293 and 2231401302.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181612 + ... + 193508.
Almost surely, 22231401320 is an apocalyptic number.
2231401320 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 2231401320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3633292260).
2231401320 is an abundant number, since it is smaller than the sum of its proper divisors (5035183200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2231401320 is a wasteful number, since it uses less digits than its factorization.
2231401320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12435 (or 12428 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 2231401320 is about 47237.7107828057. The cubic root of 2231401320 is about 1306.7501598160.
Adding to 2231401320 its reverse (231041322), we get a palindrome (2462442642).
The spelling of 2231401320 in words is "two billion, two hundred thirty-one million, four hundred one thousand, three hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.086 sec. • engine limits •