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13291042 = 217439091
BaseRepresentation
bin110010101100…
…111000100010
3221000020212211
4302230320202
511400303132
61152512334
7220654252
oct62547042
927006784
1013291042
117558836
12454b6aa
1329a482b
141a9d962
151278147
hexcace22

13291042 has 16 divisors (see below), whose sum is σ = 21602592. Its totient is φ = 6108480.

The previous prime is 13291027. The next prime is 13291049. The reversal of 13291042 is 24019231.

It is not an unprimeable number, because it can be changed into a prime (13291049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3084 + ... + 6007.

It is an arithmetic number, because the mean of its divisors is an integer number (1350162).

Almost surely, 213291042 is an apocalyptic number.

13291042 is a deficient number, since it is larger than the sum of its proper divisors (8311550).

13291042 is a wasteful number, since it uses less digits than its factorization.

13291042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9153.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13291042 is about 3645.6881380612. The cubic root of 13291042 is about 236.8752451596.

The spelling of 13291042 in words is "thirteen million, two hundred ninety-one thousand, forty-two".

Divisors: 1 2 17 34 43 86 731 1462 9091 18182 154547 309094 390913 781826 6645521 13291042