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71026002 = 23212133253
BaseRepresentation
bin1000011101111…
…00010101010010
311221122111100200
410032330111102
5121140313002
611014200030
71521465615
oct416742522
9157574320
1071026002
1137101983
121b953016
131193a828
14960c17c
15637eb1c
hex43bc552

71026002 has 24 divisors (see below), whose sum is σ = 154063884. Its totient is φ = 23648544.

The previous prime is 71025979. The next prime is 71026003. The reversal of 71026002 is 20062017.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70711281 + 314721 = 8409^2 + 561^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (71026003) by changing a digit.

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, 20208 + ... + 23460.

Almost surely, 271026002 is an apocalyptic number.

71026002 is an abundant number, since it is smaller than the sum of its proper divisors (83037882).

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

71026002 is a wasteful number, since it uses less digits than its factorization.

71026002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474 (or 4471 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 71026002 is about 8427.6925667706. The cubic root of 71026002 is about 414.1323178540.

Adding to 71026002 its reverse (20062017), we get a palindrome (91088019).

The spelling of 71026002 in words is "seventy-one million, twenty-six thousand, two".

Divisors: 1 2 3 6 9 18 1213 2426 3253 3639 6506 7278 9759 10917 19518 21834 29277 58554 3945889 7891778 11837667 23675334 35513001 71026002