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211075201 = 972176033
BaseRepresentation
bin11001001010011…
…00000010000001
3112201011201202001
430211030002001
5413013401301
632540024001
75142052411
oct1445140201
9481151661
10211075201
11a9167a17
125a832001
133496438c
1420066641
15137e5c01
hexc94c081

211075201 has 4 divisors (see below), whose sum is σ = 213251332. Its totient is φ = 208899072.

The previous prime is 211075177. The next prime is 211075217. The reversal of 211075201 is 102570112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67650625 + 143424576 = 8225^2 + 11976^2 .

It is a cyclic number.

It is not a de Polignac number, because 211075201 - 25 = 211075169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211079201) 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, 1087920 + ... + 1088113.

It is an arithmetic number, because the mean of its divisors is an integer number (53312833).

Almost surely, 2211075201 is an apocalyptic number.

It is an amenable number.

211075201 is a deficient number, since it is larger than the sum of its proper divisors (2176131).

211075201 is an equidigital number, since it uses as much as digits as its factorization.

211075201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176130.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 211075201 is about 14528.4273409065. The cubic root of 211075201 is about 595.4048991783.

The spelling of 211075201 in words is "two hundred eleven million, seventy-five thousand, two hundred one".

Divisors: 1 97 2176033 211075201