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818742041 = 13109157727
BaseRepresentation
bin110000110011010…
…000001100011001
32010001121101221022
4300303100030121
53134044221131
6213124252225
726201123015
oct6063201431
92101541838
10818742041
11390182017
121aa241075
13100815860
147aa47545
154bd2a37b
hex30cd0319

818742041 has 8 divisors (see below), whose sum is σ = 882545664. Its totient is φ = 755056080.

The previous prime is 818742019. The next prime is 818742073. The reversal of 818742041 is 140247818.

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 818742041 - 210 = 818741017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 818741992 and 818742010.

It is not an unprimeable number, because it can be changed into a prime (818742541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14681 + ... + 43046.

It is an arithmetic number, because the mean of its divisors is an integer number (110318208).

Almost surely, 2818742041 is an apocalyptic number.

It is an amenable number.

818742041 is a deficient number, since it is larger than the sum of its proper divisors (63803623).

818742041 is a wasteful number, since it uses less digits than its factorization.

818742041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58831.

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 818742041 is about 28613.6687790993. The cubic root of 818742041 is about 935.5112843210.

Adding to 818742041 its reverse (140247818), we get a palindrome (958989859).

The spelling of 818742041 in words is "eight hundred eighteen million, seven hundred forty-two thousand, forty-one".

Divisors: 1 13 1091 14183 57727 750451 62980157 818742041