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71045050 = 2521420901
BaseRepresentation
bin1000011110000…
…00111110111010
311221200110111011
410033000332322
5121141420200
611014424134
71521605266
oct417007672
9157613434
1071045050
113711521a
121b96204a
13119463bb
1496150a6
1563855ba
hex43c0fba

71045050 has 12 divisors (see below), whose sum is σ = 132143886. Its totient is φ = 28418000.

The previous prime is 71045033. The next prime is 71045063. The reversal of 71045050 is 5054017.

It can be written as a sum of positive squares in 3 ways, for example, as 60016009 + 11029041 = 7747^2 + 3321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 710401 + ... + 710500.

Almost surely, 271045050 is an apocalyptic number.

71045050 is a deficient number, since it is larger than the sum of its proper divisors (61098836).

71045050 is a wasteful number, since it uses less digits than its factorization.

71045050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420913 (or 1420908 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 71045050 is about 8428.8225749508. The cubic root of 71045050 is about 414.1693356930.

Adding to 71045050 its reverse (5054017), we get a palindrome (76099067).

The spelling of 71045050 in words is "seventy-one million, forty-five thousand, fifty".

Divisors: 1 2 5 10 25 50 1420901 2841802 7104505 14209010 35522525 71045050