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164043032 = 2320505379
BaseRepresentation
bin10011100011100…
…01100100011000
3102102200020201212
421301301210120
5313443334112
624140002252
74031225366
oct1161614430
9372606655
10164043032
1184663a5a
1246b30388
1327ca7aaa
1417b02636
15e605522
hex9c71918

164043032 has 8 divisors (see below), whose sum is σ = 307580700. Its totient is φ = 82021512.

The previous prime is 164043031. The next prime is 164043043. The reversal of 164043032 is 230340461.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 164042989 and 164043007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164043031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10252682 + ... + 10252697.

Almost surely, 2164043032 is an apocalyptic number.

It is an amenable number.

164043032 is a deficient number, since it is larger than the sum of its proper divisors (143537668).

164043032 is a wasteful number, since it uses less digits than its factorization.

164043032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20505385 (or 20505381 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 164043032 is about 12807.9284819990. The cubic root of 164043032 is about 547.4182381746.

Adding to 164043032 its reverse (230340461), we get a palindrome (394383493).

The spelling of 164043032 in words is "one hundred sixty-four million, forty-three thousand, thirty-two".

Divisors: 1 2 4 8 20505379 41010758 82021516 164043032