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71386468 = 22172371669
BaseRepresentation
bin1000100000101…
…00010101100100
311222022210211021
410100110111210
5121233331333
611030020524
71524526546
oct420242544
9158283737
1071386468
113732878a
121baa7744
1311a3591a
1496a3696
15640182d
hex4414564

71386468 has 36 divisors (see below), whose sum is σ = 136375540. Its totient is φ = 32666112.

The previous prime is 71386463. The next prime is 71386489. The reversal of 71386468 is 86468317.

It can be written as a sum of positive squares in 6 ways, for example, as 18852964 + 52533504 = 4342^2 + 7248^2 .

It is not an unprimeable number, because it can be changed into a prime (71386463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41938 + ... + 43606.

Almost surely, 271386468 is an apocalyptic number.

It is an amenable number.

71386468 is a deficient number, since it is larger than the sum of its proper divisors (64989072).

71386468 is a wasteful number, since it uses less digits than its factorization.

71386468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744 (or 1725 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 71386468 is about 8449.0513076913. The cubic root of 71386468 is about 414.8317273949.

The spelling of 71386468 in words is "seventy-one million, three hundred eighty-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 17 34 37 68 74 148 289 578 629 1156 1258 1669 2516 3338 6676 10693 21386 28373 42772 56746 61753 113492 123506 247012 482341 964682 1049801 1929364 2099602 4199204 17846617 35693234 71386468