Base | Representation |
---|---|
bin | 1101110111010001… |
… | …01011010100101010 |
3 | 201012201021001020210 |
4 | 12323220223110222 |
5 | 110220400014043 |
6 | 3230320401550 |
7 | 352305125460 |
oct | 67350532452 |
9 | 21181231223 |
10 | 7442969898 |
11 | 317a3a94a1 |
12 | 15387762b6 |
13 | 918010b00 |
14 | 508708830 |
15 | 2d8669633 |
hex | 1bba2b52a |
7442969898 has 48 divisors (see below), whose sum is σ = 18421839936. Its totient is φ = 1962979200.
The previous prime is 7442969873. The next prime is 7442969899. The reversal of 7442969898 is 8989692447.
It is not an unprimeable number, because it can be changed into a prime (7442969899) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 517203 + ... + 531398.
It is an arithmetic number, because the mean of its divisors is an integer number (383788332).
Almost surely, 27442969898 is an apocalyptic number.
7442969898 is a gapful number since it is divisible by the number (78) formed by its first and last digit.
7442969898 is an abundant number, since it is smaller than the sum of its proper divisors (10978870038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7442969898 is a wasteful number, since it uses less digits than its factorization.
7442969898 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1048639 (or 1048626 counting only the distinct ones).
The product of its digits is 62705664, while the sum is 66.
The square root of 7442969898 is about 86272.6486089305. The cubic root of 7442969898 is about 1952.4597404102.
The spelling of 7442969898 in words is "seven billion, four hundred forty-two million, nine hundred sixty-nine thousand, eight hundred ninety-eight".
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