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206292920 = 2355157323
BaseRepresentation
bin11000100101111…
…00011110111000
3112101011202200112
430102330132320
5410302333140
632245323452
75053314041
oct1422743670
9471152615
10206292920
11a64a0a19
1259106588
133397b722
141d57d8c8
151319dc65
hexc4bc7b8

206292920 has 16 divisors (see below), whose sum is σ = 464159160. Its totient is φ = 82517152.

The previous prime is 206292901. The next prime is 206292923. The reversal of 206292920 is 29292602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206292923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578622 + ... + 2578701.

Almost surely, 2206292920 is an apocalyptic number.

206292920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206292920 is an abundant number, since it is smaller than the sum of its proper divisors (257866240).

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

206292920 is a wasteful number, since it uses less digits than its factorization.

206292920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157334 (or 5157330 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 206292920 is about 14362.9008212130. The cubic root of 206292920 is about 590.8738559015.

The spelling of 206292920 in words is "two hundred six million, two hundred ninety-two thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5157323 10314646 20629292 25786615 41258584 51573230 103146460 206292920