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71230024 = 238903753
BaseRepresentation
bin1000011111011…
…10001001001000
311222000212020001
410033232021020
5121213330044
611022412344
71523305465
oct417561110
9158025201
1071230024
1137231198
121ba310b4
13119ac658
14966266c
1563c02d4
hex43ee248

71230024 has 8 divisors (see below), whose sum is σ = 133556310. Its totient is φ = 35615008.

The previous prime is 71230001. The next prime is 71230043. The reversal of 71230024 is 42003217.

It can be written as a sum of positive squares in only one way, i.e., 66945124 + 4284900 = 8182^2 + 2070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 71229983 and 71230010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4451869 + ... + 4451884.

Almost surely, 271230024 is an apocalyptic number.

It is an amenable number.

71230024 is a deficient number, since it is larger than the sum of its proper divisors (62326286).

71230024 is a wasteful number, since it uses less digits than its factorization.

71230024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8903759 (or 8903755 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 71230024 is about 8439.7881489999. The cubic root of 71230024 is about 414.5284701040.

It can be divided in two parts, 7 and 1230024, that multiplied together give a palindrome (8610168).

The spelling of 71230024 in words is "seventy-one million, two hundred thirty thousand, twenty-four".

Divisors: 1 2 4 8 8903753 17807506 35615012 71230024