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164080726 = 282040363
BaseRepresentation
bin10011100011110…
…10110001010110
3102102202011102221
421301322301112
5314001040401
624140452554
74031443315
oct1161726126
9372664387
10164080726
118468a307
1246b4a15a
1327cbbcb4
1417b1227c
15e6117a1
hex9c7ac56

164080726 has 4 divisors (see below), whose sum is σ = 246121092. Its totient is φ = 82040362.

The previous prime is 164080723. The next prime is 164080727. The reversal of 164080726 is 627080461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 627080461 = 789582923.

It is a junction number, because it is equal to n+sod(n) for n = 164080691 and 164080700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164080723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41020180 + ... + 41020183.

It is an arithmetic number, because the mean of its divisors is an integer number (61530273).

Almost surely, 2164080726 is an apocalyptic number.

164080726 is a deficient number, since it is larger than the sum of its proper divisors (82040366).

164080726 is an equidigital number, since it uses as much as digits as its factorization.

164080726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82040365.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 164080726 is about 12809.3999078802. The cubic root of 164080726 is about 547.4601637648.

The spelling of 164080726 in words is "one hundred sixty-four million, eighty thousand, seven hundred twenty-six".

Divisors: 1 2 82040363 164080726