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206994325 = 5212296737
BaseRepresentation
bin11000101011001…
…11101110010101
3112102111101211111
430111213232111
5410442304300
632312335021
75062264666
oct1425475625
9472441744
10206994325
11a692a99a
12593a4471
1333b65a65
141d6c336d
151328b9ba
hexc567b95

206994325 has 12 divisors (see below), whose sum is σ = 256919940. Its totient is φ = 165436160.

The previous prime is 206994311. The next prime is 206994353. The reversal of 206994325 is 523499602.

It can be written as a sum of positive squares in 6 ways, for example, as 8099716 + 198894609 = 2846^2 + 14103^2 .

It is not a de Polignac number, because 206994325 - 27 = 206994197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27357 + ... + 34093.

It is an arithmetic number, because the mean of its divisors is an integer number (21409995).

Almost surely, 2206994325 is an apocalyptic number.

206994325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

206994325 is a deficient number, since it is larger than the sum of its proper divisors (49925615).

206994325 is a wasteful number, since it uses less digits than its factorization.

206994325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976 (or 7971 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 206994325 is about 14387.2973487031. The cubic root of 206994325 is about 591.5427640658.

The spelling of 206994325 in words is "two hundred six million, nine hundred ninety-four thousand, three hundred twenty-five".

Divisors: 1 5 25 1229 6145 6737 30725 33685 168425 8279773 41398865 206994325