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65031413 = 831315981
BaseRepresentation
bin1111100000010…
…0110011110101
311112100221022212
43320010303311
5113122001123
610241503205
71416520646
oct370046365
9145327285
1065031413
1133788077
1219941b05
131061c135
1488cb6cd
155a98878
hex3e04cf5

65031413 has 8 divisors (see below), whose sum is σ = 66328416. Its totient is φ = 63746800.

The previous prime is 65031403. The next prime is 65031467. The reversal of 65031413 is 31413056.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65031413 - 26 = 65031349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65031403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7883 + ... + 13863.

It is an arithmetic number, because the mean of its divisors is an integer number (8291052).

Almost surely, 265031413 is an apocalyptic number.

It is an amenable number.

65031413 is a deficient number, since it is larger than the sum of its proper divisors (1297003).

65031413 is a wasteful number, since it uses less digits than its factorization.

65031413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 65031413 is about 8064.2056645401. The cubic root of 65031413 is about 402.1373362267.

Adding to 65031413 its reverse (31413056), we get a palindrome (96444469).

The spelling of 65031413 in words is "sixty-five million, thirty-one thousand, four hundred thirteen".

Divisors: 1 83 131 5981 10873 496423 783511 65031413