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71313055 = 5111296601
BaseRepresentation
bin1000100000000…
…10011010011111
311222012002010021
410100002122133
5121224004210
611024253011
71524102532
oct420023237
9158162107
1071313055
1137288610
121ba71167
1311a0b398
149684a19
1563d9bda
hex440269f

71313055 has 8 divisors (see below), whose sum is σ = 93355344. Its totient is φ = 51864000.

The previous prime is 71313017. The next prime is 71313083. The reversal of 71313055 is 55031317.

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

It is not a de Polignac number, because 71313055 - 211 = 71311007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648246 + ... + 648355.

It is an arithmetic number, because the mean of its divisors is an integer number (11669418).

Almost surely, 271313055 is an apocalyptic number.

71313055 is a deficient number, since it is larger than the sum of its proper divisors (22042289).

71313055 is a wasteful number, since it uses less digits than its factorization.

71313055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296617.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 71313055 is about 8444.7057379165. The cubic root of 71313055 is about 414.6894759386.

The spelling of 71313055 in words is "seventy-one million, three hundred thirteen thousand, fifty-five".

Divisors: 1 5 11 55 1296601 6483005 14262611 71313055