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19696272 = 243410339
BaseRepresentation
bin100101100100…
…0101010010000
31101001200012120
41023020222100
520020240042
61542054240
7326262351
oct113105220
941050176
1019696272
1110133112
12671a380
1341080cb
142889d28
151ae0dec
hex12c8a90

19696272 has 20 divisors (see below), whose sum is σ = 50882160. Its totient is φ = 6565408.

The previous prime is 19696267. The next prime is 19696273. The reversal of 19696272 is 27269691.

It is not an unprimeable number, because it can be changed into a prime (19696273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205122 + ... + 205217.

It is an arithmetic number, because the mean of its divisors is an integer number (2544108).

Almost surely, 219696272 is an apocalyptic number.

19696272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19696272 is an abundant number, since it is smaller than the sum of its proper divisors (31185888).

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

19696272 is a wasteful number, since it uses less digits than its factorization.

19696272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410350 (or 410344 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 19696272 is about 4438.0482196569. The cubic root of 19696272 is about 270.0606722363.

The spelling of 19696272 in words is "nineteen million, six hundred ninety-six thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 410339 820678 1231017 1641356 2462034 3282712 4924068 6565424 9848136 19696272