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71370677 = 710195811
BaseRepresentation
bin1000100000100…
…00011110110101
311222022000011102
410100100132311
5121232330202
611025415445
71524432530
oct420203665
9158260142
1071370677
1137317934
121ba9a585
1311a2b691
14969ba17
1563ebd02
hex44107b5

71370677 has 4 divisors (see below), whose sum is σ = 81566496. Its totient is φ = 61174860.

The previous prime is 71370667. The next prime is 71370683. The reversal of 71370677 is 77607317.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77607317 = 531464289.

It is a cyclic number.

It is not a de Polignac number, because 71370677 - 24 = 71370661 is a prime.

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 71370677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71370617) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5097899 + ... + 5097912.

It is an arithmetic number, because the mean of its divisors is an integer number (20391624).

Almost surely, 271370677 is an apocalyptic number.

It is an amenable number.

71370677 is a deficient number, since it is larger than the sum of its proper divisors (10195819).

71370677 is a wasteful number, since it uses less digits than its factorization.

71370677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195818.

The product of its (nonzero) digits is 43218, while the sum is 38.

The square root of 71370677 is about 8448.1167723937. The cubic root of 71370677 is about 414.8011376064.

The spelling of 71370677 in words is "seventy-one million, three hundred seventy thousand, six hundred seventy-seven".

Divisors: 1 7 10195811 71370677