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13162988 = 2243103743
BaseRepresentation
bin110010001101…
…100111101100
3220202202020002
4302031213230
511332203423
61150043432
7216612026
oct62154754
926682202
1013162988
117480603
1244a9578
13295b467
141a69016
151250228
hexc8d9ec

13162988 has 24 divisors (see below), whose sum is σ = 23831808. Its totient is φ = 6357456.

The previous prime is 13162987. The next prime is 13162993. The reversal of 13162988 is 88926131.

It is not an unprimeable number, because it can be changed into a prime (13162987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17345 + ... + 18087.

It is an arithmetic number, because the mean of its divisors is an integer number (992992).

Almost surely, 213162988 is an apocalyptic number.

It is an amenable number.

13162988 is a deficient number, since it is larger than the sum of its proper divisors (10668820).

13162988 is a wasteful number, since it uses less digits than its factorization.

13162988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 891 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 13162988 is about 3628.0832405004. The cubic root of 13162988 is about 236.1120553759.

The spelling of 13162988 in words is "thirteen million, one hundred sixty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 43 86 103 172 206 412 743 1486 2972 4429 8858 17716 31949 63898 76529 127796 153058 306116 3290747 6581494 13162988