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71026385 = 518477691
BaseRepresentation
bin1000011101111…
…00011011010001
311221122111212212
410032330123101
5121140321020
611014201505
71521500003
oct416743321
9157574785
1071026385
11371021a1
121b953295
131193aa61
14960c373
15637ecc5
hex43bc6d1

71026385 has 8 divisors (see below), whose sum is σ = 85288896. Its totient is φ = 56782960.

The previous prime is 71026379. The next prime is 71026393. The reversal of 71026385 is 58362017.

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 71026385 - 222 = 66832081 is a prime.

It is a Duffinian number.

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, 5390 + ... + 13080.

It is an arithmetic number, because the mean of its divisors is an integer number (10661112).

Almost surely, 271026385 is an apocalyptic number.

It is an amenable number.

71026385 is a deficient number, since it is larger than the sum of its proper divisors (14262511).

71026385 is a wasteful number, since it uses less digits than its factorization.

71026385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9543.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 71026385 is about 8427.7152894483. The cubic root of 71026385 is about 414.1330622405.

The spelling of 71026385 in words is "seventy-one million, twenty-six thousand, three hundred eighty-five".

Divisors: 1 5 1847 7691 9235 38455 14205277 71026385