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71428576 = 252518893
BaseRepresentation
bin1000100000111…
…10100111100000
311222101221120211
410100132213200
5121241203301
611030543504
71525063402
oct420364740
9158357524
1071428576
113735738a
121bb07b94
1311a4bb3b
1496b4b72
15640e051
hex441e9e0

71428576 has 24 divisors (see below), whose sum is σ = 141201144. Its totient is φ = 35568000.

The previous prime is 71428571. The next prime is 71428583. The reversal of 71428576 is 67582417.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71428571) 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, 3586 + ... + 12478.

It is an arithmetic number, because the mean of its divisors is an integer number (5883381).

Almost surely, 271428576 is an apocalyptic number.

It is an amenable number.

71428576 is a deficient number, since it is larger than the sum of its proper divisors (69772568).

71428576 is a wasteful number, since it uses less digits than its factorization.

71428576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154 (or 9146 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 71428576 is about 8451.5428177345. The cubic root of 71428576 is about 414.9132755346.

The spelling of 71428576 in words is "seventy-one million, four hundred twenty-eight thousand, five hundred seventy-six".

Divisors: 1 2 4 8 16 32 251 502 1004 2008 4016 8032 8893 17786 35572 71144 142288 284576 2232143 4464286 8928572 17857144 35714288 71428576