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206375201 = 922122381
BaseRepresentation
bin11000100110100…
…00100100100001
3112101022221112222
430103100210201
5410313001301
632251200425
75054105654
oct1423204441
9471287488
10206375201
11a654781a
1259146115
13339aa006
141d5a189b
15131b831b
hexc4d0921

206375201 has 4 divisors (see below), whose sum is σ = 206406804. Its totient is φ = 206343600.

The previous prime is 206375179. The next prime is 206375227. The reversal of 206375201 is 102573602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102573602 = 251286801.

It can be written as a sum of positive squares in 2 ways, for example, as 161163025 + 45212176 = 12695^2 + 6724^2 .

It is a cyclic number.

It is not a de Polignac number, because 206375201 - 26 = 206375137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206371201) 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, 1970 + ... + 20411.

It is an arithmetic number, because the mean of its divisors is an integer number (51601701).

Almost surely, 2206375201 is an apocalyptic number.

It is an amenable number.

206375201 is a deficient number, since it is larger than the sum of its proper divisors (31603).

206375201 is an equidigital number, since it uses as much as digits as its factorization.

206375201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31602.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 206375201 is about 14365.7648943591. The cubic root of 206375201 is about 590.9524031591.

The spelling of 206375201 in words is "two hundred six million, three hundred seventy-five thousand, two hundred one".

Divisors: 1 9221 22381 206375201