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19797041 = 111799731
BaseRepresentation
bin100101110000…
…1010000110001
31101020210102202
41023201100301
520032001131
61544152545
7330162215
oct113412061
941223382
1019797041
11101a18a0
126768755
134141c34
1428b4945
151b10bcb
hex12e1431

19797041 has 4 divisors (see below), whose sum is σ = 21596784. Its totient is φ = 17997300.

The previous prime is 19797023. The next prime is 19797047. The reversal of 19797041 is 14079791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19797041 - 26 = 19796977 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19796986 and 19797004.

It is not an unprimeable number, because it can be changed into a prime (19797047) 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, 899855 + ... + 899876.

It is an arithmetic number, because the mean of its divisors is an integer number (5399196).

Almost surely, 219797041 is an apocalyptic number.

19797041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19797041 is a deficient number, since it is larger than the sum of its proper divisors (1799743).

19797041 is a wasteful number, since it uses less digits than its factorization.

19797041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799742.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 19797041 is about 4449.3865869353. The cubic root of 19797041 is about 270.5204456309.

The spelling of 19797041 in words is "nineteen million, seven hundred ninety-seven thousand, forty-one".

Divisors: 1 11 1799731 19797041