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71040035 = 5111291637
BaseRepresentation
bin1000011101111…
…11110000100011
311221200012121102
410032333300203
5121141240120
611014345015
71521554543
oct416776043
9157605542
1071040035
1137111480
121b95b16b
1311944031
149613323
156383d75
hex43bfc23

71040035 has 8 divisors (see below), whose sum is σ = 92997936. Its totient is φ = 51665440.

The previous prime is 71040029. The next prime is 71040043. The reversal of 71040035 is 53004017.

It is a happy number.

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

It is not a de Polignac number, because 71040035 - 26 = 71039971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71039989 and 71040016.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645764 + ... + 645873.

It is an arithmetic number, because the mean of its divisors is an integer number (11624742).

Almost surely, 271040035 is an apocalyptic number.

71040035 is a deficient number, since it is larger than the sum of its proper divisors (21957901).

71040035 is a wasteful number, since it uses less digits than its factorization.

71040035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291653.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 71040035 is about 8428.5250785651. The cubic root of 71040035 is about 414.1595901954.

The spelling of 71040035 in words is "seventy-one million, forty thousand, thirty-five".

Divisors: 1 5 11 55 1291637 6458185 14208007 71040035