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801005307 = 31873142553
BaseRepresentation
bin101111101111100…
…101111011111011
32001211020021201020
4233233211323323
53120024132212
6211252153523
725564301304
oct5757457373
92054207636
10801005307
11381168163
121a43088a3
13c9c4564b
147854b7ab
154a4c4d8c
hex2fbe5efb

801005307 has 8 divisors (see below), whose sum is σ = 1068584784. Its totient is φ = 533714688.

The previous prime is 801005281. The next prime is 801005327. The reversal of 801005307 is 703500108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 801005307 - 26 = 801005243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (801005327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65658 + ... + 76895.

It is an arithmetic number, because the mean of its divisors is an integer number (133573098).

Almost surely, 2801005307 is an apocalyptic number.

801005307 is a deficient number, since it is larger than the sum of its proper divisors (267579477).

801005307 is a wasteful number, since it uses less digits than its factorization.

801005307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144429.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 801005307 is about 28302.0371528270. The cubic root of 801005307 is about 928.7064557669.

The spelling of 801005307 in words is "eight hundred one million, five thousand, three hundred seven".

Divisors: 1 3 1873 5619 142553 427659 267001769 801005307