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166305201 = 355435067
BaseRepresentation
bin10011110100110…
…01110110110001
3102120221011211220
421322121312301
5320033231301
624300255253
74056366546
oct1172316661
9376834756
10166305201
1185969617
1247841529
13285ba65a
1418130bcd
15e900936
hex9e99db1

166305201 has 4 divisors (see below), whose sum is σ = 221740272. Its totient is φ = 110870132.

The previous prime is 166305199. The next prime is 166305211. The reversal of 166305201 is 102503661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166305201 - 21 = 166305199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166305211) 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, 27717531 + ... + 27717536.

It is an arithmetic number, because the mean of its divisors is an integer number (55435068).

Almost surely, 2166305201 is an apocalyptic number.

It is an amenable number.

166305201 is a deficient number, since it is larger than the sum of its proper divisors (55435071).

166305201 is an equidigital number, since it uses as much as digits as its factorization.

166305201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55435070.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 166305201 is about 12895.9373835328. The cubic root of 166305201 is about 549.9230757431.

Adding to 166305201 its reverse (102503661), we get a palindrome (268808862).

The spelling of 166305201 in words is "one hundred sixty-six million, three hundred five thousand, two hundred one".

Divisors: 1 3 55435067 166305201