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4245205 = 5978753
BaseRepresentation
bin10000001100011011010101
321222200022211
4100030123111
52041321310
6230553421
751040456
oct20143325
97880284
104245205
11243a538
121508871
13b58373
147c712d
1558cc8a
hex40c6d5

4245205 has 8 divisors (see below), whose sum is σ = 5147352. Its totient is φ = 3360768.

The previous prime is 4245203. The next prime is 4245209. The reversal of 4245205 is 5025424.

It can be written as a sum of positive squares in 4 ways, for example, as 998001 + 3247204 = 999^2 + 1802^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4245205 - 21 = 4245203 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 (4245203) 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, 3892 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (643419).

Almost surely, 24245205 is an apocalyptic number.

It is an amenable number.

4245205 is a deficient number, since it is larger than the sum of its proper divisors (902147).

4245205 is an equidigital number, since it uses as much as digits as its factorization.

4245205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8855.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4245205 is about 2060.3895262790. The cubic root of 4245205 is about 161.9196497336.

The spelling of 4245205 in words is "four million, two hundred forty-five thousand, two hundred five".

Divisors: 1 5 97 485 8753 43765 849041 4245205