| Base | Representation |
|---|---|
| bin | 1101000101010000… |
| … | …01110100000000000 |
| 3 | 200010110210202222000 |
| 4 | 12202220032200000 |
| 5 | 103340443441230 |
| 6 | 3120532144000 |
| 7 | 336022045230 |
| oct | 64250164000 |
| 9 | 20113722860 |
| 10 | 7023421440 |
| 11 | 2a845a1532 |
| 12 | 1440168000 |
| 13 | 87c116799 |
| 14 | 4a8ad5cc0 |
| 15 | 2b18e3b60 |
| hex | 1a2a0e800 |
7023421440 has 768 divisors, whose sum is σ = 30191616000. Its totient is φ = 1512898560.
The previous prime is 7023421439. The next prime is 7023421441. The reversal of 7023421440 is 441243207.
It is an interprime number because it is at equal distance from previous prime (7023421439) and next prime (7023421441).
It is a tau number, because it is divible by the number of its divisors (768).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7023421441) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36771745 + ... + 36771935.
It is an arithmetic number, because the mean of its divisors is an integer number (39312000).
Almost surely, 27023421440 is an apocalyptic number.
7023421440 is a gapful number since it is divisible by the number (70) 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 7023421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15095808000).
7023421440 is an abundant number, since it is smaller than the sum of its proper divisors (23168194560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7023421440 is a wasteful number, since it uses less digits than its factorization.
7023421440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 253 (or 227 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 27.
The square root of 7023421440 is about 83805.8556426697. The cubic root of 7023421440 is about 1915.0623125745.
Adding to 7023421440 its reverse (441243207), we get a palindrome (7464664647).
The spelling of 7023421440 in words is "seven billion, twenty-three million, four hundred twenty-one thousand, four hundred forty".
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