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164386799 = 658124979
BaseRepresentation
bin10011100110001…
…01011111101111
3102110022201021222
421303011133233
5314040334144
624151213555
74034156543
oct1163053757
9373281258
10164386799
1184879265
12470772bb
13280983c5
1417b91a23
15e6722ee
hex9cc57ef

164386799 has 4 divisors (see below), whose sum is σ = 164418360. Its totient is φ = 164355240.

The previous prime is 164386793. The next prime is 164386801. The reversal of 164386799 is 997683461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 997683461 = 2383418667.

It is a cyclic number.

It is not a de Polignac number, because 164386799 - 216 = 164321263 is a prime.

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 164386799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164386793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5909 + ... + 19070.

It is an arithmetic number, because the mean of its divisors is an integer number (41104590).

Almost surely, 2164386799 is an apocalyptic number.

164386799 is a deficient number, since it is larger than the sum of its proper divisors (31561).

164386799 is an equidigital number, since it uses as much as digits as its factorization.

164386799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31560.

The product of its digits is 1959552, while the sum is 53.

The square root of 164386799 is about 12821.3415444719. The cubic root of 164386799 is about 547.8003595070.

The spelling of 164386799 in words is "one hundred sixty-four million, three hundred eighty-six thousand, seven hundred ninety-nine".

Divisors: 1 6581 24979 164386799