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671471480 = 235149112663
BaseRepresentation
bin101000000001011…
…101011101111000
31201210111021201002
4220001131131320
52333344041410
6150343544132
722432261541
oct5001353570
91653437632
10671471480
11315034509
12168a5b048
13a9161104
146526d4c8
153de397a5
hex2805d778

671471480 has 32 divisors (see below), whose sum is σ = 1520964000. Its totient is φ = 266783616.

The previous prime is 671471459. The next prime is 671471497. The reversal of 671471480 is 84174176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50372 + ... + 62291.

It is an arithmetic number, because the mean of its divisors is an integer number (47530125).

Almost surely, 2671471480 is an apocalyptic number.

It is an amenable number.

671471480 is an abundant number, since it is smaller than the sum of its proper divisors (849492520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671471480 is a wasteful number, since it uses less digits than its factorization.

671471480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112823 (or 112819 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 671471480 is about 25912.7667376527. The cubic root of 671471480 is about 875.6741384399.

The spelling of 671471480 in words is "six hundred seventy-one million, four hundred seventy-one thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 149 298 596 745 1192 1490 2980 5960 112663 225326 450652 563315 901304 1126630 2253260 4506520 16786787 33573574 67147148 83933935 134294296 167867870 335735740 671471480