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71054460 = 22325394747
BaseRepresentation
bin1000011110000…
…11010001111100
311221200221101200
410033003101330
5121142220320
611014535500
71521644601
oct417032174
9157627350
1071054460
11371212a4
121b967590
131194a779
1496186a8
156388290
hex43c347c

71054460 has 36 divisors (see below), whose sum is σ = 215532408. Its totient is φ = 18947808.

The previous prime is 71054413. The next prime is 71054479. The reversal of 71054460 is 6445017.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 197194 + ... + 197553.

Almost surely, 271054460 is an apocalyptic number.

It is an amenable number.

71054460 is an abundant number, since it is smaller than the sum of its proper divisors (144477948).

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

71054460 is a wasteful number, since it uses less digits than its factorization.

71054460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394762 (or 394757 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 71054460 is about 8429.3807601745. The cubic root of 71054460 is about 414.1876206235.

Adding to 71054460 its reverse (6445017), we get a palindrome (77499477).

The spelling of 71054460 in words is "seventy-one million, fifty-four thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 394747 789494 1184241 1578988 1973735 2368482 3552723 3947470 4736964 5921205 7105446 7894940 11842410 14210892 17763615 23684820 35527230 71054460