Base | Representation |
---|---|
bin | 100001010010… |
… | …010001110100 |
3 | 121102022022010 |
4 | 201102101310 |
5 | 4213204440 |
6 | 511004220 |
7 | 134111061 |
oct | 41222164 |
9 | 17368263 |
10 | 8725620 |
11 | 4a1a762 |
12 | 2b09670 |
13 | 1a667b7 |
14 | 1231c68 |
15 | b75580 |
hex | 852474 |
8725620 has 48 divisors (see below), whose sum is σ = 25034688. Its totient is φ = 2269440.
The previous prime is 8725609. The next prime is 8725621. The reversal of 8725620 is 265278.
It is a super-2 number, since 2×87256202 = 152272888768800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8725621) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687 + ... + 4233.
It is an arithmetic number, because the mean of its divisors is an integer number (521556).
Almost surely, 28725620 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 8725620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12517344).
8725620 is an abundant number, since it is smaller than the sum of its proper divisors (16309068).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8725620 is a wasteful number, since it uses less digits than its factorization.
8725620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3600 (or 3598 counting only the distinct ones).
The product of its (nonzero) digits is 6720, while the sum is 30.
The square root of 8725620 is about 2953.9160448462. The cubic root of 8725620 is about 205.8727023248.
The spelling of 8725620 in words is "eight million, seven hundred twenty-five thousand, six hundred twenty".
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