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80071135 = 537014327
BaseRepresentation
bin1001100010111…
…00100111011111
312120200000221121
410301130213133
5130444234020
611540111411
71661410354
oct461344737
9176600847
1080071135
114121a6a1
1222995567
1313786891
14a8c462b
157069baa
hex4c5c9df

80071135 has 8 divisors (see below), whose sum is σ = 96133536. Its totient is φ = 64024800.

The previous prime is 80071133. The next prime is 80071151. The reversal of 80071135 is 53117008.

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

It is not a de Polignac number, because 80071135 - 21 = 80071133 is a prime.

It is a super-2 number, since 2×800711352 = 12822773320376450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80071133) 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, 16342 + ... + 20668.

It is an arithmetic number, because the mean of its divisors is an integer number (12016692).

Almost surely, 280071135 is an apocalyptic number.

80071135 is a deficient number, since it is larger than the sum of its proper divisors (16062401).

80071135 is a wasteful number, since it uses less digits than its factorization.

80071135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 80071135 is about 8948.2475938029. The cubic root of 80071135 is about 431.0146132645.

The spelling of 80071135 in words is "eighty million, seventy-one thousand, one hundred thirty-five".

Divisors: 1 5 3701 4327 18505 21635 16014227 80071135