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8342825 = 52333713
BaseRepresentation
bin11111110100110100101001
3120200212012112
4133310310221
54113432300
6454452105
7130625051
oct37646451
916625175
108342825
1147890a7
122964035
1319614aa
141172561
15aebe35
hex7f4d29

8342825 has 6 divisors (see below), whose sum is σ = 10345134. Its totient is φ = 6674240.

The previous prime is 8342821. The next prime is 8342827. The reversal of 8342825 is 5282438.

It can be written as a sum of positive squares in 3 ways, for example, as 2621161 + 5721664 = 1619^2 + 2392^2 .

It is not a de Polignac number, because 8342825 - 22 = 8342821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8342791 and 8342800.

It is not an unprimeable number, because it can be changed into a prime (8342821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166832 + ... + 166881.

It is an arithmetic number, because the mean of its divisors is an integer number (1724189).

Almost surely, 28342825 is an apocalyptic number.

It is an amenable number.

8342825 is a deficient number, since it is larger than the sum of its proper divisors (2002309).

8342825 is a wasteful number, since it uses less digits than its factorization.

8342825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333723 (or 333718 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 8342825 is about 2888.3948829757. The cubic root of 8342825 is about 202.8170109585.

The spelling of 8342825 in words is "eight million, three hundred forty-two thousand, eight hundred twenty-five".

Divisors: 1 5 25 333713 1668565 8342825