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244411261 = 1721616653
BaseRepresentation
bin11101001000101…
…10101101111101
3122000220101012221
432210112231331
51000032130021
640130325341
76025314163
oct1644265575
9560811187
10244411261
11115a66886
1269a29851
133b836963
1424663233
15166cd241
hexe916b7d

244411261 has 8 divisors (see below), whose sum is σ = 258947064. Its totient is φ = 229893120.

The previous prime is 244411253. The next prime is 244411267. The reversal of 244411261 is 162114442.

It can be written as a sum of positive squares in 4 ways, for example, as 19980900 + 224430361 = 4470^2 + 14981^2 .

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 244411261 - 23 = 244411253 is a prime.

It is a super-2 number, since 2×2444112612 = 119473729007220242, 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 (244411267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33411 + ... + 40063.

It is an arithmetic number, because the mean of its divisors is an integer number (32368383).

Almost surely, 2244411261 is an apocalyptic number.

It is an amenable number.

244411261 is a deficient number, since it is larger than the sum of its proper divisors (14535803).

244411261 is a wasteful number, since it uses less digits than its factorization.

244411261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831.

The product of its digits is 1536, while the sum is 25.

The square root of 244411261 is about 15633.6579532750. The cubic root of 244411261 is about 625.2308574373.

The spelling of 244411261 in words is "two hundred forty-four million, four hundred eleven thousand, two hundred sixty-one".

Divisors: 1 17 2161 6653 36737 113101 14377133 244411261