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71030003 = 1123280751
BaseRepresentation
bin1000011101111…
…01010011110011
311221122200211212
410032331103303
5121140430003
611014230335
71521513362
oct416752363
9157580755
1071030003
1137104990
121b9553ab
131193c5b5
14960d7d9
156380dd8
hex43bd4f3

71030003 has 8 divisors (see below), whose sum is σ = 80856576. Its totient is φ = 61765000.

The previous prime is 71029997. The next prime is 71030009. The reversal of 71030003 is 30003017.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71029997) and next prime (71030009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71030003 - 212 = 71025907 is a prime.

It is a super-2 number, since 2×710300032 = 10090522652360018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71030003.

It is not an unprimeable number, because it can be changed into a prime (71030009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140123 + ... + 140628.

It is an arithmetic number, because the mean of its divisors is an integer number (10107072).

Almost surely, 271030003 is an apocalyptic number.

71030003 is a deficient number, since it is larger than the sum of its proper divisors (9826573).

71030003 is a wasteful number, since it uses less digits than its factorization.

71030003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280785.

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 71030003 is about 8427.9299356366. The cubic root of 71030003 is about 414.1400939372.

The spelling of 71030003 in words is "seventy-one million, thirty thousand, three".

Divisors: 1 11 23 253 280751 3088261 6457273 71030003