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19147132 = 2223208121
BaseRepresentation
bin100100100001…
…0100101111100
31100000202221001
41021002211330
514400202012
61522220044
7321514354
oct111024574
940022831
1019147132
11a898584
1264b4624
133c75184
142785b64
151a33357
hex124297c

19147132 has 12 divisors (see below), whose sum is σ = 34964496. Its totient is φ = 9157280.

The previous prime is 19147127. The next prime is 19147133. The reversal of 19147132 is 23174191.

It is a super-2 number, since 2×191471322 = 733225327650848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19147132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19147133) 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 3 ways as a sum of consecutive naturals, for example, 103969 + ... + 104152.

It is an arithmetic number, because the mean of its divisors is an integer number (2913708).

Almost surely, 219147132 is an apocalyptic number.

It is an amenable number.

19147132 is a deficient number, since it is larger than the sum of its proper divisors (15817364).

19147132 is a wasteful number, since it uses less digits than its factorization.

19147132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208148 (or 208146 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 19147132 is about 4375.7435939506. The cubic root of 19147132 is about 267.5271792339.

The spelling of 19147132 in words is "nineteen million, one hundred forty-seven thousand, one hundred thirty-two".

Divisors: 1 2 4 23 46 92 208121 416242 832484 4786783 9573566 19147132