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13124045 = 511475077
BaseRepresentation
bin110010000100…
…000111001101
3220200202210202
4302010013031
511324432140
61145143245
7216360344
oct62040715
926622722
1013124045
117454320
12448ab25
13294680c
141a58b5b
151243915
hexc841cd

13124045 has 16 divisors (see below), whose sum is σ = 17549568. Its totient is φ = 9339840.

The previous prime is 13124021. The next prime is 13124047. The reversal of 13124045 is 54042131.

It is not a de Polignac number, because 13124045 - 210 = 13123021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124047) 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, 47 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (1096848).

Almost surely, 213124045 is an apocalyptic number.

It is an amenable number.

13124045 is a deficient number, since it is larger than the sum of its proper divisors (4425523).

13124045 is a wasteful number, since it uses less digits than its factorization.

13124045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13124045 is about 3622.7123816279. The cubic root of 13124045 is about 235.8789777371.

Adding to 13124045 its reverse (54042131), we get a palindrome (67166176).

The spelling of 13124045 in words is "thirteen million, one hundred twenty-four thousand, forty-five".

Divisors: 1 5 11 47 55 235 517 2585 5077 25385 55847 238619 279235 1193095 2624809 13124045