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19489092 = 2237232013
BaseRepresentation
bin100101001011…
…0000101000100
31100200011000020
41022112011010
514442122332
61533415140
7324440340
oct112260504
940604006
1019489092
1110001497
12663a4b0
134064a0c
142834620
151a9e82c
hex1296144

19489092 has 24 divisors (see below), whose sum is σ = 51971136. Its totient is φ = 5568288.

The previous prime is 19489069. The next prime is 19489097. The reversal of 19489092 is 29098491.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (19489097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115923 + ... + 116090.

It is an arithmetic number, because the mean of its divisors is an integer number (2165464).

Almost surely, 219489092 is an apocalyptic number.

19489092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19489092 is an abundant number, since it is smaller than the sum of its proper divisors (32482044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19489092 is a wasteful number, since it uses less digits than its factorization.

19489092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232027 (or 232025 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 19489092 is about 4414.6451726045. The cubic root of 19489092 is about 269.1104331380.

The spelling of 19489092 in words is "nineteen million, four hundred eighty-nine thousand, ninety-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 232013 464026 696039 928052 1392078 1624091 2784156 3248182 4872273 6496364 9744546 19489092