Base | Representation |
---|---|
bin | 1000000001001110… |
… | …0111011010001101 |
3 | 12120000112201110200 |
4 | 2000103213122031 |
5 | 13402033011210 |
6 | 553334124113 |
7 | 104226005661 |
oct | 20023473215 |
9 | 5500481420 |
10 | 2152625805 |
11 | a051126a0 |
12 | 500ab0639 |
13 | 283c854a5 |
14 | 165c688a1 |
15 | c8eb00c0 |
hex | 804e768d |
2152625805 has 48 divisors (see below), whose sum is σ = 4284671040. Its totient is φ = 988761600.
The previous prime is 2152625779. The next prime is 2152625857. The reversal of 2152625805 is 5085262512.
It is a happy number.
2152625805 is a `hidden beast` number, since 2 + 15 + 2 + 62 + 580 + 5 = 666.
It is not a de Polignac number, because 2152625805 - 25 = 2152625773 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 2152625805.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105036 + ... + 123845.
It is an arithmetic number, because the mean of its divisors is an integer number (89263980).
Almost surely, 22152625805 is an apocalyptic number.
It is an amenable number.
2152625805 is a deficient number, since it is larger than the sum of its proper divisors (2132045235).
2152625805 is a wasteful number, since it uses less digits than its factorization.
2152625805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228922 (or 228919 counting only the distinct ones).
The product of its (nonzero) digits is 48000, while the sum is 36.
The square root of 2152625805 is about 46396.3986210137. The cubic root of 2152625805 is about 1291.1880977751.
The spelling of 2152625805 in words is "two billion, one hundred fifty-two million, six hundred twenty-five thousand, eight hundred five".
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