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811073801 = 3181132261
BaseRepresentation
bin110000010110000…
…000000100001001
32002112011211002102
4300112000010021
53130113330201
6212252043145
726046004436
oct6026000411
92075154072
10811073801
1138691482a
121a77634b5
13cc05c435
1479a0cb8d
154b31326b
hex30580109

811073801 has 8 divisors (see below), whose sum is σ = 838295808. Its totient is φ = 783918000.

The previous prime is 811073797. The next prime is 811073807. The reversal of 811073801 is 108370118.

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 811073801 - 22 = 811073797 is a prime.

It is a Duffinian number.

811073801 is a modest number, since divided by 73801 gives 811 as remainder.

It is not an unprimeable number, because it can be changed into a prime (811073807) 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, 9011 + ... + 41271.

It is an arithmetic number, because the mean of its divisors is an integer number (104786976).

Almost surely, 2811073801 is an apocalyptic number.

It is an amenable number.

811073801 is a deficient number, since it is larger than the sum of its proper divisors (27222007).

811073801 is a wasteful number, since it uses less digits than its factorization.

811073801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33103.

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 811073801 is about 28479.3574541281. The cubic root of 811073801 is about 932.5814895711.

The spelling of 811073801 in words is "eight hundred eleven million, seventy-three thousand, eight hundred one".

Divisors: 1 31 811 25141 32261 1000091 26163671 811073801