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206990350 = 25274712583
BaseRepresentation
bin11000101011001…
…10110000001110
3112102111012101021
430111212300032
5410442142400
632312304354
75062250260
oct1425466016
9472435337
10206990350
11a6927a06
12593a20ba
1333b63cc8
141d6c1b30
151328a71a
hexc566c0e

206990350 has 48 divisors (see below), whose sum is σ = 449399808. Its totient is φ = 69452640.

The previous prime is 206990341. The next prime is 206990359. The reversal of 206990350 is 53099602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (206990341) and next prime (206990359).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206990359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10159 + ... + 22741.

It is an arithmetic number, because the mean of its divisors is an integer number (9362496).

Almost surely, 2206990350 is an apocalyptic number.

206990350 is an abundant number, since it is smaller than the sum of its proper divisors (242409458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206990350 is a wasteful number, since it uses less digits than its factorization.

206990350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649 (or 12644 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 206990350 is about 14387.1592053470. The cubic root of 206990350 is about 591.5389774925.

The spelling of 206990350 in words is "two hundred six million, nine hundred ninety thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 47 50 70 94 175 235 329 350 470 658 1175 1645 2350 3290 8225 12583 16450 25166 62915 88081 125830 176162 314575 440405 591401 629150 880810 1182802 2202025 2957005 4139807 4404050 5914010 8279614 14785025 20699035 29570050 41398070 103495175 206990350