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244131261 = 31141180437
BaseRepresentation
bin11101000110100…
…10010110111101
3122000101011010120
432203102112331
5444444200021
640120325153
76023036643
oct1643222675
9560334116
10244131261
11115895480
12699137b9
133b76938a
14245cd193
15166752c6
hexe8d25bd

244131261 has 16 divisors (see below), whose sum is σ = 363763008. Its totient is φ = 144348800.

The previous prime is 244131229. The next prime is 244131263. The reversal of 244131261 is 162131442.

It is a cyclic number.

It is not a de Polignac number, because 244131261 - 25 = 244131229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244131263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88866 + ... + 91571.

It is an arithmetic number, because the mean of its divisors is an integer number (22735188).

Almost surely, 2244131261 is an apocalyptic number.

It is an amenable number.

244131261 is a deficient number, since it is larger than the sum of its proper divisors (119631747).

244131261 is a wasteful number, since it uses less digits than its factorization.

244131261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180492.

The product of its digits is 1152, while the sum is 24.

The square root of 244131261 is about 15624.7003491267. The cubic root of 244131261 is about 624.9920092845.

The spelling of 244131261 in words is "two hundred forty-four million, one hundred thirty-one thousand, two hundred sixty-one".

Divisors: 1 3 11 33 41 123 451 1353 180437 541311 1984807 5954421 7397917 22193751 81377087 244131261