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19794141 = 3217312713
BaseRepresentation
bin100101110000…
…0100011011101
31101020122110100
41023200203131
520031403031
61544131313
7330150603
oct113404335
941218410
1019794141
111019a6a4
126766b39
134140813
1428b3873
151b0ede6
hex12e08dd

19794141 has 12 divisors (see below), whose sum is σ = 28759068. Its totient is φ = 13118784.

The previous prime is 19794139. The next prime is 19794163. The reversal of 19794141 is 14149791.

It can be written as a sum of positive squares in 2 ways, for example, as 18404100 + 1390041 = 4290^2 + 1179^2 .

It is not a de Polignac number, because 19794141 - 21 = 19794139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19794096 and 19794105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19794101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4800 + ... + 7913.

It is an arithmetic number, because the mean of its divisors is an integer number (2396589).

Almost surely, 219794141 is an apocalyptic number.

It is an amenable number.

19794141 is a deficient number, since it is larger than the sum of its proper divisors (8964927).

19794141 is a wasteful number, since it uses less digits than its factorization.

19794141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12892 (or 12889 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 19794141 is about 4449.0606873811. The cubic root of 19794141 is about 270.5072357846.

The spelling of 19794141 in words is "nineteen million, seven hundred ninety-four thousand, one hundred forty-one".

Divisors: 1 3 9 173 519 1557 12713 38139 114417 2199349 6598047 19794141