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71424486 = 23273591579
BaseRepresentation
bin1000100000111…
…01100111100110
311222101201222100
410100131213212
5121241040421
611030512530
71525045440
oct420354746
9158351870
1071424486
1137354301
121bb05746
1311a4a013
1496b3490
15640cc26
hex441d9e6

71424486 has 48 divisors (see below), whose sum is σ = 177465600. Its totient is φ = 20337264.

The previous prime is 71424449. The next prime is 71424503. The reversal of 71424486 is 68442417.

It is a self number, because there is not a number n which added to its sum of digits gives 71424486.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44445 + ... + 46023.

It is an arithmetic number, because the mean of its divisors is an integer number (3697200).

Almost surely, 271424486 is an apocalyptic number.

71424486 is an abundant number, since it is smaller than the sum of its proper divisors (106041114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71424486 is a wasteful number, since it uses less digits than its factorization.

71424486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1950 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 71424486 is about 8451.3008466153. The cubic root of 71424486 is about 414.9053560726.

It can be divided in two parts, 7142 and 4486, that added together give a triangular number (11628 = T152).

The spelling of 71424486 in words is "seventy-one million, four hundred twenty-four thousand, four hundred eighty-six".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 359 718 1077 1579 2154 2513 3158 3231 4737 5026 6462 7539 9474 11053 14211 15078 22106 22617 28422 33159 45234 66318 99477 198954 566861 1133722 1700583 3401166 3968027 5101749 7936054 10203498 11904081 23808162 35712243 71424486