Search a number
-
+
23144019 = 343179411
BaseRepresentation
bin101100001001…
…0011001010011
31121112211121220
41120102121103
521411102034
62144020123
7400502163
oct130223123
947484556
1023144019
1112078498
127901643
134a444b2
1431065a3
152072749
hex1612653

23144019 has 8 divisors (see below), whose sum is σ = 31576512. Its totient is φ = 15070440.

The previous prime is 23143999. The next prime is 23144027. The reversal of 23144019 is 91044132.

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

It is not a de Polignac number, because 23144019 - 217 = 23012947 is a prime.

It is a super-2 number, since 2×231440192 = 1071291230944722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23144019.

It is not an unprimeable number, because it can be changed into a prime (23144039) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 89577 + ... + 89834.

It is an arithmetic number, because the mean of its divisors is an integer number (3947064).

Almost surely, 223144019 is an apocalyptic number.

23144019 is a deficient number, since it is larger than the sum of its proper divisors (8432493).

23144019 is a wasteful number, since it uses less digits than its factorization.

23144019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179457.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 23144019 is about 4810.8231104459. The cubic root of 23144019 is about 284.9790443195.

The spelling of 23144019 in words is "twenty-three million, one hundred forty-four thousand, nineteen".

Divisors: 1 3 43 129 179411 538233 7714673 23144019