Base | Representation |
---|---|
bin | 1111011000010101… |
… | …0100101111101111 |
3 | 101122201200010220112 |
4 | 3312011110233233 |
5 | 31423404401311 |
6 | 1521402010235 |
7 | 204211304651 |
oct | 36605245757 |
9 | 11581603815 |
10 | 4128590831 |
11 | 1829533442 |
12 | 9727a697b |
13 | 50a465971 |
14 | 2b24686d1 |
15 | 1926c628b |
hex | f6154bef |
4128590831 has 4 divisors (see below), whose sum is σ = 4128905952. Its totient is φ = 4128275712.
The previous prime is 4128590821. The next prime is 4128590839. The reversal of 4128590831 is 1380958214.
4128590831 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 4128590831 - 210 = 4128589807 is a prime.
It is a super-2 number, since 2×41285908312 = 34090524499634541122, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (4128590839) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137015 + ... + 164408.
It is an arithmetic number, because the mean of its divisors is an integer number (1032226488).
Almost surely, 24128590831 is an apocalyptic number.
4128590831 is a deficient number, since it is larger than the sum of its proper divisors (315121).
4128590831 is a wasteful number, since it uses less digits than its factorization.
4128590831 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315120.
The product of its (nonzero) digits is 69120, while the sum is 41.
The square root of 4128590831 is about 64254.1113937466. Note that the first 3 decimals coincide. The cubic root of 4128590831 is about 1604.2323921998.
The spelling of 4128590831 in words is "four billion, one hundred twenty-eight million, five hundred ninety thousand, eight hundred thirty-one".
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