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71413761 = 3191252873
BaseRepresentation
bin1000100000110…
…11000000000001
311222101012021010
410100123000001
5121240220021
611030351133
71525002246
oct420330001
9158335233
1071413761
1137347241
121babb4a9
1311a45183
1496ad5cd
156409976
hex441b001

71413761 has 8 divisors (see below), whose sum is σ = 100229920. Its totient is φ = 45103392.

The previous prime is 71413721. The next prime is 71413807. The reversal of 71413761 is 16731417.

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

It is not a de Polignac number, because 71413761 - 215 = 71380993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71413721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626380 + ... + 626493.

It is an arithmetic number, because the mean of its divisors is an integer number (12528740).

Almost surely, 271413761 is an apocalyptic number.

It is an amenable number.

71413761 is a deficient number, since it is larger than the sum of its proper divisors (28816159).

71413761 is a wasteful number, since it uses less digits than its factorization.

71413761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252895.

The product of its digits is 3528, while the sum is 30.

The square root of 71413761 is about 8450.6663050910. Note that the first 3 decimals coincide. The cubic root of 71413761 is about 414.8845878322.

The spelling of 71413761 in words is "seventy-one million, four hundred thirteen thousand, seven hundred sixty-one".

Divisors: 1 3 19 57 1252873 3758619 23804587 71413761