Base | Representation |
---|---|
bin | 11110111111101001011100 |
3 | 120021210102200 |
4 | 132333221130 |
5 | 4040000040 |
6 | 450051500 |
7 | 126030051 |
oct | 36775134 |
9 | 16253380 |
10 | 8125020 |
11 | 464a4a2 |
12 | 2879b90 |
13 | 18b6307 |
14 | 1117028 |
15 | aa7630 |
hex | 7bfa5c |
8125020 has 36 divisors (see below), whose sum is σ = 24646440. Its totient is φ = 2166624.
The previous prime is 8125009. The next prime is 8125021. The reversal of 8125020 is 205218.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a nialpdrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 8124984 and 8125002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8125021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22390 + ... + 22749.
Almost surely, 28125020 is an apocalyptic number.
It is an amenable number.
8125020 is an abundant number, since it is smaller than the sum of its proper divisors (16521420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8125020 is a wasteful number, since it uses less digits than its factorization.
8125020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45154 (or 45149 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 8125020 is about 2850.4420709778. The cubic root of 8125020 is about 201.0364528822.
It can be divided in two parts, 812 and 5020, that added together give a cube (5832 = 183).
The spelling of 8125020 in words is "eight million, one hundred twenty-five thousand, twenty".
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