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71463130 = 257146313
BaseRepresentation
bin1000100001001…
…11000011011010
311222110200222121
410100213003122
5121243310010
611031411454
71525266214
oct420470332
9158420877
1071463130
1137380342
121bb23b8a
1311a6179b
1496c35b4
1564193da
hex44270da

71463130 has 8 divisors (see below), whose sum is σ = 128633652. Its totient is φ = 28585248.

The previous prime is 71463127. The next prime is 71463137. The reversal of 71463130 is 3136417.

It can be written as a sum of positive squares in 2 ways, for example, as 66113161 + 5349969 = 8131^2 + 2313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 71463095 and 71463104.

It is not an unprimeable number, because it can be changed into a prime (71463137) 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, 3573147 + ... + 3573166.

Almost surely, 271463130 is an apocalyptic number.

71463130 is a deficient number, since it is larger than the sum of its proper divisors (57170522).

71463130 is a wasteful number, since it uses less digits than its factorization.

71463130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7146320.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 71463130 is about 8453.5868127086. The cubic root of 71463130 is about 414.9801703401.

Adding to 71463130 its reverse (3136417), we get a palindrome (74599547).

The spelling of 71463130 in words is "seventy-one million, four hundred sixty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 7146313 14292626 35731565 71463130