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71471699 = 135497823
BaseRepresentation
bin1000100001010…
…01001001010011
311222111010201222
410100221021103
5121244043244
611031515255
71525333205
oct420511123
9158433658
1071471699
1137386822
121bb28b2b
1311a65660
1496c6775
15641bbee
hex4429253

71471699 has 4 divisors (see below), whose sum is σ = 76969536. Its totient is φ = 65973864.

The previous prime is 71471693. The next prime is 71471707. The reversal of 71471699 is 99617417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71471699 - 220 = 70423123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71471693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2748899 + ... + 2748924.

It is an arithmetic number, because the mean of its divisors is an integer number (19242384).

Almost surely, 271471699 is an apocalyptic number.

71471699 is a deficient number, since it is larger than the sum of its proper divisors (5497837).

71471699 is a wasteful number, since it uses less digits than its factorization.

71471699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497836.

The product of its digits is 95256, while the sum is 44.

The square root of 71471699 is about 8454.0936238014. The cubic root of 71471699 is about 414.9967561560.

The spelling of 71471699 in words is "seventy-one million, four hundred seventy-one thousand, six hundred ninety-nine".

Divisors: 1 13 5497823 71471699