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25308085 = 511460147
BaseRepresentation
bin110000010001…
…0101110110101
31202121210011111
41200202232311
522434324320
62302235021
7425054335
oct140425665
952553144
1025308085
1113316380
128585a71
1353214ca
14350b0c5
15234da5a
hex1822bb5

25308085 has 8 divisors (see below), whose sum is σ = 33130656. Its totient is φ = 18405840.

The previous prime is 25308077. The next prime is 25308089. The reversal of 25308085 is 58080352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25308085 - 23 = 25308077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25308089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230019 + ... + 230128.

It is an arithmetic number, because the mean of its divisors is an integer number (4141332).

Almost surely, 225308085 is an apocalyptic number.

It is an amenable number.

25308085 is a deficient number, since it is larger than the sum of its proper divisors (7822571).

25308085 is a wasteful number, since it uses less digits than its factorization.

25308085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460163.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 25308085 is about 5030.7141640129. The cubic root of 25308085 is about 293.5980013389.

The spelling of 25308085 in words is "twenty-five million, three hundred eight thousand, eighty-five".

Divisors: 1 5 11 55 460147 2300735 5061617 25308085