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19712441 = 719314591
BaseRepresentation
bin100101100110…
…0100110111001
31101002111101102
41023030212321
520021244231
61542301145
7326360450
oct113144671
941074342
1019712441
1110144281
1267277b5
134112588
142891b97
151ae5acb
hex12cc9b9

19712441 has 8 divisors (see below), whose sum is σ = 22646784. Its totient is φ = 16807680.

The previous prime is 19712423. The next prime is 19712467. The reversal of 19712441 is 14421791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19712441 - 26 = 19712377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19712471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5945 + ... + 8646.

It is an arithmetic number, because the mean of its divisors is an integer number (2830848).

Almost surely, 219712441 is an apocalyptic number.

It is an amenable number.

19712441 is a deficient number, since it is larger than the sum of its proper divisors (2934343).

19712441 is a wasteful number, since it uses less digits than its factorization.

19712441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14791.

The product of its digits is 2016, while the sum is 29.

The square root of 19712441 is about 4439.8694800636. The cubic root of 19712441 is about 270.1345511354.

The spelling of 19712441 in words is "nineteen million, seven hundred twelve thousand, four hundred forty-one".

Divisors: 1 7 193 1351 14591 102137 2816063 19712441