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71424154 = 21923711151
BaseRepresentation
bin1000100000111…
…01100010011010
311222101201112001
410100131202122
5121241033104
611030511214
71525044454
oct420354232
9158351461
1071424154
113735402a
121bb0550a
1311a49b19
1496b32d4
15640caa4
hex441d89a

71424154 has 32 divisors (see below), whose sum is σ = 119439360. Its totient is φ = 31878000.

The previous prime is 71424151. The next prime is 71424163. The reversal of 71424154 is 45142417.

It is not an unprimeable number, because it can be changed into a prime (71424151) 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 15 ways as a sum of consecutive naturals, for example, 61479 + ... + 62629.

It is an arithmetic number, because the mean of its divisors is an integer number (3732480).

Almost surely, 271424154 is an apocalyptic number.

71424154 is a deficient number, since it is larger than the sum of its proper divisors (48015206).

71424154 is a wasteful number, since it uses less digits than its factorization.

71424154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266.

The product of its digits is 4480, while the sum is 28.

The square root of 71424154 is about 8451.2812046458. The cubic root of 71424154 is about 414.9047132081.

The spelling of 71424154 in words is "seventy-one million, four hundred twenty-four thousand, one hundred fifty-four".

Divisors: 1 2 19 23 38 46 71 142 437 874 1151 1349 1633 2302 2698 3266 21869 26473 31027 43738 52946 62054 81721 163442 502987 1005974 1552699 1879583 3105398 3759166 35712077 71424154