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164460013 = 805920407
BaseRepresentation
bin10011100110101…
…11010111101101
3102110110102201121
421303113113231
5314100210023
624152540541
74034613154
oct1163272755
9373412647
10164460013
1184919273
12470b1751
13280c2823
1417bb059b
15e688d5d
hex9cd75ed

164460013 has 4 divisors (see below), whose sum is σ = 164488480. Its totient is φ = 164431548.

The previous prime is 164460001. The next prime is 164460019. The reversal of 164460013 is 310064461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164460013 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 164460013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164460019) 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, 2145 + ... + 18262.

It is an arithmetic number, because the mean of its divisors is an integer number (41122120).

Almost surely, 2164460013 is an apocalyptic number.

It is an amenable number.

164460013 is a deficient number, since it is larger than the sum of its proper divisors (28467).

164460013 is an equidigital number, since it uses as much as digits as its factorization.

164460013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28466.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 164460013 is about 12824.1963880783. The cubic root of 164460013 is about 547.8816732196.

The spelling of 164460013 in words is "one hundred sixty-four million, four hundred sixty thousand, thirteen".

Divisors: 1 8059 20407 164460013