| Base | Representation |
|---|---|
| bin | 1101110111001011… |
| … | …10010101100111000 |
| 3 | 201012122211121221000 |
| 4 | 12323211302230320 |
| 5 | 110220201314223 |
| 6 | 3230252245000 |
| 7 | 352265526000 |
| oct | 67345625470 |
| 9 | 21178747830 |
| 10 | 7442213688 |
| 11 | 3179a32328 |
| 12 | 1538470760 |
| 13 | 917b07850 |
| 14 | 50858d000 |
| 15 | 2d856a543 |
| hex | 1bb972b38 |
7442213688 has 256 divisors, whose sum is σ = 25966080000. Its totient is φ = 1962527616.
The previous prime is 7442213677. The next prime is 7442213699. The reversal of 7442213688 is 8863122447.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (7442213677) and next prime (7442213699).
It is a super-2 number, since 2×74422136882 (a number of 21 digits) contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 959281 + ... + 967007.
It is an arithmetic number, because the mean of its divisors is an integer number (101430000).
Almost surely, 27442213688 is an apocalyptic number.
7442213688 is a gapful number since it is divisible by the number (78) 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 7442213688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12983040000).
7442213688 is an abundant number, since it is smaller than the sum of its proper divisors (18523866312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7442213688 is a wasteful number, since it uses less digits than its factorization.
7442213688 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7776 (or 7752 counting only the distinct ones).
The product of its digits is 516096, while the sum is 45.
The square root of 7442213688 is about 86268.2658223753. The cubic root of 7442213688 is about 1952.3936144951.
The spelling of 7442213688 in words is "seven billion, four hundred forty-two million, two hundred thirteen thousand, six hundred eighty-eight".
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