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164343331 = 1923936191
BaseRepresentation
bin10011100101110…
…10111000100011
3102110020111200001
421302322320203
5314032441311
624150240431
74033616035
oct1162727043
9373214601
10164343331
1184849639
1247056117
1328081699
1417b7dc55
15e6644c1
hex9cbae23

164343331 has 8 divisors (see below), whose sum is σ = 173721600. Its totient is φ = 155037960.

The previous prime is 164343313. The next prime is 164343337. The reversal of 164343331 is 133343461.

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

It is a cyclic number.

It is not a de Polignac number, because 164343331 - 29 = 164342819 is a prime.

It is a super-2 number, since 2×1643433312 = 54017460888351122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164343331.

It is not an unprimeable number, because it can be changed into a prime (164343337) 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, 13555 + ... + 22636.

It is an arithmetic number, because the mean of its divisors is an integer number (21715200).

Almost surely, 2164343331 is an apocalyptic number.

164343331 is a deficient number, since it is larger than the sum of its proper divisors (9378269).

164343331 is a wasteful number, since it uses less digits than its factorization.

164343331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36449.

The product of its digits is 7776, while the sum is 28.

The square root of 164343331 is about 12819.6462899723. The cubic root of 164343331 is about 547.7520711909.

Adding to 164343331 its reverse (133343461), we get a palindrome (297686792).

The spelling of 164343331 in words is "one hundred sixty-four million, three hundred forty-three thousand, three hundred thirty-one".

Divisors: 1 19 239 4541 36191 687629 8649649 164343331