Search a number
-
+
244161109 = 415955149
BaseRepresentation
bin11101000110110…
…01101001010101
3122000102200002001
432203121221111
51000001123414
640121115301
76023222653
oct1643315125
9560380061
10244161109
11115905945
1269928b31
133b779b3a
14245d9dd3
151667e074
hexe8d9a55

244161109 has 4 divisors (see below), whose sum is σ = 250116300. Its totient is φ = 238205920.

The previous prime is 244161103. The next prime is 244161133. The reversal of 244161109 is 901161442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901161442 = 2450580721.

It can be written as a sum of positive squares in 2 ways, for example, as 99560484 + 144600625 = 9978^2 + 12025^2 .

It is a cyclic number.

It is not a de Polignac number, because 244161109 - 29 = 244160597 is a prime.

It is a super-2 number, since 2×2441611092 = 119229294296219762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244161103) 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, 2977534 + ... + 2977615.

It is an arithmetic number, because the mean of its divisors is an integer number (62529075).

Almost surely, 2244161109 is an apocalyptic number.

It is an amenable number.

244161109 is a deficient number, since it is larger than the sum of its proper divisors (5955191).

244161109 is an equidigital number, since it uses as much as digits as its factorization.

244161109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955190.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 244161109 is about 15625.6554742513. The cubic root of 244161109 is about 625.0174791912.

The spelling of 244161109 in words is "two hundred forty-four million, one hundred sixty-one thousand, one hundred nine".

Divisors: 1 41 5955149 244161109