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671472806 = 21917670337
BaseRepresentation
bin101000000001011…
…101110010100110
31201210111100112012
4220001131302212
52333344112211
6150343554222
722432265444
oct5001356246
91653440465
10671472806
11315035504
12168a5b972
13a91618b4
146526db94
153de39d8b
hex2805dca6

671472806 has 8 divisors (see below), whose sum is σ = 1060220280. Its totient is φ = 318066048.

The previous prime is 671472797. The next prime is 671472827. The reversal of 671472806 is 608274176.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8835131 + ... + 8835206.

It is an arithmetic number, because the mean of its divisors is an integer number (132527535).

Almost surely, 2671472806 is an apocalyptic number.

671472806 is a deficient number, since it is larger than the sum of its proper divisors (388747474).

671472806 is a wasteful number, since it uses less digits than its factorization.

671472806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670358.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 671472806 is about 25912.7923234838. The cubic root of 671472806 is about 875.6747148571.

The spelling of 671472806 in words is "six hundred seventy-one million, four hundred seventy-two thousand, eight hundred six".

Divisors: 1 2 19 38 17670337 35340674 335736403 671472806