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13161124 = 223290281
BaseRepresentation
bin110010001101…
…001010100100
3220202122200001
4302031022210
511332123444
61150031044
7216603424
oct62151244
926678601
1013161124
11747a169
1244a8484
13295a662
141a68484
15124e8d4
hexc8d2a4

13161124 has 6 divisors (see below), whose sum is σ = 23031974. Its totient is φ = 6580560.

The previous prime is 13161121. The next prime is 13161131. The reversal of 13161124 is 42116131.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 3175524 = 3160^2 + 1782^2 .

It is not an unprimeable number, because it can be changed into a prime (13161121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1645137 + ... + 1645144.

Almost surely, 213161124 is an apocalyptic number.

It is an amenable number.

13161124 is a deficient number, since it is larger than the sum of its proper divisors (9870850).

13161124 is a wasteful number, since it uses less digits than its factorization.

13161124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290285 (or 3290283 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 13161124 is about 3627.8263464504. The cubic root of 13161124 is about 236.1009096379.

Adding to 13161124 its reverse (42116131), we get a palindrome (55277255).

The spelling of 13161124 in words is "thirteen million, one hundred sixty-one thousand, one hundred twenty-four".

Divisors: 1 2 4 3290281 6580562 13161124