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801048391 = 11135601737
BaseRepresentation
bin101111101111110…
…000011101000111
32001211022110210221
4233233300131013
53120032022031
6211253125211
725564541023
oct5757603507
92054273727
10801048391
11381197570
121a4329807
13c9c5c140
147855d383
154a4d2a11
hex2fbf0747

801048391 has 8 divisors (see below), whose sum is σ = 941091984. Its totient is φ = 672208320.

The previous prime is 801048389. The next prime is 801048403. The reversal of 801048391 is 193840108.

It is a happy number.

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 801048391 - 21 = 801048389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801048691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2800726 + ... + 2801011.

It is an arithmetic number, because the mean of its divisors is an integer number (117636498).

Almost surely, 2801048391 is an apocalyptic number.

801048391 is a deficient number, since it is larger than the sum of its proper divisors (140043593).

801048391 is a wasteful number, since it uses less digits than its factorization.

801048391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601761.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 801048391 is about 28302.7982892151. The cubic root of 801048391 is about 928.7231063730.

Adding to 801048391 its reverse (193840108), we get a palindrome (994888499).

The spelling of 801048391 in words is "eight hundred one million, forty-eight thousand, three hundred ninety-one".

Divisors: 1 11 13 143 5601737 61619107 72822581 801048391