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825068961 = 3291674329
BaseRepresentation
bin110001001011011…
…000110110100001
32010111111211211200
4301023120312201
53142204201321
6213512031413
726305653603
oct6113306641
92114454750
10825068961
11393803582
121b0392569
13101c1c5b2
147b813173
154c679d26
hex312d8da1

825068961 has 6 divisors (see below), whose sum is σ = 1191766290. Its totient is φ = 550045968.

The previous prime is 825068917. The next prime is 825068963. The reversal of 825068961 is 169860528.

825068961 is a `hidden beast` number, since 8 + 2 + 506 + 89 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 677300625 + 147768336 = 26025^2 + 12156^2 .

It is not a de Polignac number, because 825068961 - 217 = 824937889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825068963) 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, 45837156 + ... + 45837173.

It is an arithmetic number, because the mean of its divisors is an integer number (198627715).

Almost surely, 2825068961 is an apocalyptic number.

It is an amenable number.

825068961 is a deficient number, since it is larger than the sum of its proper divisors (366697329).

825068961 is a wasteful number, since it uses less digits than its factorization.

825068961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91674335 (or 91674332 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 825068961 is about 28724.0136645282. The cubic root of 825068961 is about 937.9148593774.

The spelling of 825068961 in words is "eight hundred twenty-five million, sixty-eight thousand, nine hundred sixty-one".

Divisors: 1 3 9 91674329 275022987 825068961