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19196712 = 2332594519
BaseRepresentation
bin100100100111…
…0101100101000
31100010021221100
41021032230220
514403243322
61523241400
7322112043
oct111165450
940107840
1019196712
11a921857
126519260
133c91902
142799c5a
151a42dac
hex124eb28

19196712 has 48 divisors (see below), whose sum is σ = 52884000. Its totient is φ = 6289056.

The previous prime is 19196711. The next prime is 19196741. The reversal of 19196712 is 21769191.

It is a super-2 number, since 2×191967122 = 737027503221888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (19196711) 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 11 ways as a sum of consecutive naturals, for example, 1989 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (1101750).

Almost surely, 219196712 is an apocalyptic number.

19196712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19196712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26442000).

19196712 is an abundant number, since it is smaller than the sum of its proper divisors (33687288).

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

19196712 is a wasteful number, since it uses less digits than its factorization.

19196712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590 (or 4583 counting only the distinct ones).

The product of its digits is 6804, while the sum is 36.

The square root of 19196712 is about 4381.4052540252. The cubic root of 19196712 is about 267.7578937746.

The spelling of 19196712 in words is "nineteen million, one hundred ninety-six thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 59 72 118 177 236 354 472 531 708 1062 1416 2124 4248 4519 9038 13557 18076 27114 36152 40671 54228 81342 108456 162684 266621 325368 533242 799863 1066484 1599726 2132968 2399589 3199452 4799178 6398904 9598356 19196712