Base | Representation |
---|---|
bin | 1111001011011011… |
… | …10111101110011010 |
3 | 210000220201210111000 |
4 | 13211231313232122 |
5 | 113142114140430 |
6 | 3424340445430 |
7 | 405640066056 |
oct | 74555675632 |
9 | 23026653430 |
10 | 8148974490 |
11 | 350197a168 |
12 | 16b50a9876 |
13 | 9cb3732c7 |
14 | 5743a6c66 |
15 | 32a625e60 |
hex | 1e5b77b9a |
8148974490 has 32 divisors (see below), whose sum is σ = 21730599360. Its totient is φ = 2173059792.
The previous prime is 8148974489. The next prime is 8148974507. The reversal of 8148974490 is 944798418.
8148974490 is a `hidden beast` number, since 8 + 1 + 4 + 89 + 74 + 490 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15090424 + ... + 15090963.
It is an arithmetic number, because the mean of its divisors is an integer number (679081230).
Almost surely, 28148974490 is an apocalyptic number.
8148974490 is an abundant number, since it is smaller than the sum of its proper divisors (13581624870).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8148974490 is a wasteful number, since it uses less digits than its factorization.
8148974490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30181403 (or 30181397 counting only the distinct ones).
The product of its (nonzero) digits is 2322432, while the sum is 54.
The square root of 8148974490 is about 90271.6704730781. The cubic root of 8148974490 is about 2012.3382678820.
The spelling of 8148974490 in words is "eight billion, one hundred forty-eight million, nine hundred seventy-four thousand, four hundred ninety".
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