Search a number
-
+
164888459 = 5310130803
BaseRepresentation
bin10011101001111…
…11111110001011
3102111021012102222
421310333332023
5314202412314
624210044255
74041346241
oct1164777613
9374235388
10164888459
118509115a
124727968b
1328212848
1417c82791
15e720c8e
hex9d3ff8b

164888459 has 8 divisors (see below), whose sum is σ = 169668432. Its totient is φ = 160170400.

The previous prime is 164888453. The next prime is 164888467. The reversal of 164888459 is 954888461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164888459 - 216 = 164822923 is a prime.

It is a super-2 number, since 2×1648884592 = 54376407822789362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

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 164888459.

It is not an unprimeable number, because it can be changed into a prime (164888453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10049 + ... + 20754.

It is an arithmetic number, because the mean of its divisors is an integer number (21208554).

Almost surely, 2164888459 is an apocalyptic number.

164888459 is a deficient number, since it is larger than the sum of its proper divisors (4779973).

164888459 is a wasteful number, since it uses less digits than its factorization.

164888459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30957.

The product of its digits is 2211840, while the sum is 53.

The square root of 164888459 is about 12840.8901171219. The cubic root of 164888459 is about 548.3570353008.

The spelling of 164888459 in words is "one hundred sixty-four million, eight hundred eighty-eight thousand, four hundred fifty-nine".

Divisors: 1 53 101 5353 30803 1632559 3111103 164888459