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1241409 = 313139229
BaseRepresentation
bin100101111000101000001
32100001220010
410233011001
5304211114
642335133
713360161
oct4570501
92301803
101241409
11778764
124ba4a9
13346080
142445a1
15197c59
hex12f141

1241409 has 16 divisors (see below), whose sum is σ = 1803200. Its totient is φ = 755136.

The previous prime is 1241407. The next prime is 1241413. The reversal of 1241409 is 9041421.

It is not a de Polignac number, because 1241409 - 21 = 1241407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241407) 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, 5307 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (112700).

21241409 is an apocalyptic number.

It is an amenable number.

1241409 is a deficient number, since it is larger than the sum of its proper divisors (561791).

1241409 is a wasteful number, since it uses less digits than its factorization.

1241409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1241409 is about 1114.1853526232. The cubic root of 1241409 is about 107.4743836566.

The spelling of 1241409 in words is "one million, two hundred forty-one thousand, four hundred nine".

Divisors: 1 3 13 39 139 229 417 687 1807 2977 5421 8931 31831 95493 413803 1241409