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19129922 = 271971917
BaseRepresentation
bin100100011111…
…0011001000010
31022222220022122
41020332121002
514344124142
61522004242
7321413240
oct110763102
938886278
1019129922
11a886659
1264a6682
133c6a3a6
14277d790
151a2d1d2
hex123e642

19129922 has 16 divisors (see below), whose sum is σ = 34520640. Its totient is φ = 7766928.

The previous prime is 19129919. The next prime is 19129931. The reversal of 19129922 is 22992191.

It is an unprimeable number.

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, 35693 + ... + 36224.

It is an arithmetic number, because the mean of its divisors is an integer number (2157540).

Almost surely, 219129922 is an apocalyptic number.

19129922 is a deficient number, since it is larger than the sum of its proper divisors (15390718).

19129922 is a wasteful number, since it uses less digits than its factorization.

19129922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71945.

The product of its digits is 5832, while the sum is 35.

The square root of 19129922 is about 4373.7766289558. The cubic root of 19129922 is about 267.4470014665.

The spelling of 19129922 in words is "nineteen million, one hundred twenty-nine thousand, nine hundred twenty-two".

Divisors: 1 2 7 14 19 38 133 266 71917 143834 503419 1006838 1366423 2732846 9564961 19129922