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164709792 = 253213293741
BaseRepresentation
bin10011101000101…
…00010110100000
3102110221010100200
421310110112200
5314131203132
624202145200
74040003322
oct1164242640
9373833320
10164709792
1184a799a5
12471b2200
132817c420
1417c37612
15e6d7d7c
hex9d145a0

164709792 has 288 divisors, whose sum is σ = 548992080. Its totient is φ = 46448640.

The previous prime is 164709781. The next prime is 164709859. The reversal of 164709792 is 297907461.

164709792 is a `hidden beast` number, since 1 + 6 + 470 + 97 + 92 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 44675856 + 120033936 = 6684^2 + 10956^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4017292 + ... + 4017332.

Almost surely, 2164709792 is an apocalyptic number.

164709792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164709792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274496040).

164709792 is an abundant number, since it is smaller than the sum of its proper divisors (384282288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164709792 is a wasteful number, since it uses less digits than its factorization.

164709792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 164709792 is about 12833.9312761133. The cubic root of 164709792 is about 548.1589039598.

It can be divided in two parts, 16470 and 9792, that added together give a palindrome (26262).

The spelling of 164709792 in words is "one hundred sixty-four million, seven hundred nine thousand, seven hundred ninety-two".