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166303105 = 5199718047
BaseRepresentation
bin10011110100110…
…01010110000001
3102120221001222021
421322121112001
5320033144410
624300241441
74056360463
oct1172312601
9376831867
10166303105
1185967a91
1247840281
13285b9707
1418130133
15e8eeeda
hex9e99581

166303105 has 16 divisors (see below), whose sum is σ = 212244480. Its totient is φ = 124733952.

The previous prime is 166303103. The next prime is 166303147. The reversal of 166303105 is 501303661.

It is a cyclic number.

It is not a de Polignac number, because 166303105 - 21 = 166303103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166303105.

It is not an unprimeable number, because it can be changed into a prime (166303103) 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 15 ways as a sum of consecutive naturals, for example, 192 + ... + 18238.

It is an arithmetic number, because the mean of its divisors is an integer number (13265280).

Almost surely, 2166303105 is an apocalyptic number.

It is an amenable number.

166303105 is a deficient number, since it is larger than the sum of its proper divisors (45941375).

166303105 is a wasteful number, since it uses less digits than its factorization.

166303105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18168.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 166303105 is about 12895.8561173735. The cubic root of 166303105 is about 549.9207654453.

Adding to 166303105 its reverse (501303661), we get a palindrome (667606766).

The spelling of 166303105 in words is "one hundred sixty-six million, three hundred three thousand, one hundred five".

Divisors: 1 5 19 95 97 485 1843 9215 18047 90235 342893 1714465 1750559 8752795 33260621 166303105