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166230213 = 3355915569
BaseRepresentation
bin10011110100001…
…11100011000101
3102120210100222120
421322013203011
5320023331323
624254520153
74055635122
oct1172074305
9376710876
10166230213
1185918246
1247806059
1328592496
1418111749
15e8d85e3
hex9e878c5

166230213 has 8 divisors (see below), whose sum is σ = 221716800. Its totient is φ = 110781888.

The previous prime is 166230179. The next prime is 166230227. The reversal of 166230213 is 312032661.

It is a happy number.

166230213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166230213 - 214 = 166213829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166230293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2893 + ... + 18461.

It is an arithmetic number, because the mean of its divisors is an integer number (27714600).

Almost surely, 2166230213 is an apocalyptic number.

It is an amenable number.

166230213 is a deficient number, since it is larger than the sum of its proper divisors (55486587).

166230213 is a wasteful number, since it uses less digits than its factorization.

166230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19131.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 166230213 is about 12893.0296284465. The cubic root of 166230213 is about 549.8404087930.

Adding to 166230213 its reverse (312032661), we get a palindrome (478262874).

The spelling of 166230213 in words is "one hundred sixty-six million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 3 3559 10677 15569 46707 55410071 166230213