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71470906 = 2132994789
BaseRepresentation
bin1000100001010…
…00111100111010
311222111002122121
410100220330322
5121244032111
611031511454
71525330663
oct420507472
9158432577
1071470906
1137386171
121bb2858a
1311a651a0
1496c636a
15641b871
hex4428f3a

71470906 has 16 divisors (see below), whose sum is σ = 119435400. Its totient is φ = 31848768.

The previous prime is 71470891. The next prime is 71470909. The reversal of 71470906 is 60907417.

It can be written as a sum of positive squares in 4 ways, for example, as 64400625 + 7070281 = 8025^2 + 2659^2 .

It is not an unprimeable number, because it can be changed into a prime (71470909) 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, 46641 + ... + 48148.

Almost surely, 271470906 is an apocalyptic number.

71470906 is a deficient number, since it is larger than the sum of its proper divisors (47964494).

71470906 is a wasteful number, since it uses less digits than its factorization.

71470906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94833.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 71470906 is about 8454.0467233154. The cubic root of 71470906 is about 414.9952213124.

The spelling of 71470906 in words is "seventy-one million, four hundred seventy thousand, nine hundred six".

Divisors: 1 2 13 26 29 58 377 754 94789 189578 1232257 2464514 2748881 5497762 35735453 71470906