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65042413 = 232827931
BaseRepresentation
bin1111100000011…
…1011111101101
311112101111102021
43320013133231
5113122324123
610242030141
71416565012
oct370073755
9145344367
1065042413
1133795367
1219948351
1310624147
1488d1709
155a9bc5d
hex3e077ed

65042413 has 4 divisors (see below), whose sum is σ = 67870368. Its totient is φ = 62214460.

The previous prime is 65042401. The next prime is 65042429. The reversal of 65042413 is 31424056.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65042413 - 25 = 65042381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65042213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1413943 + ... + 1413988.

It is an arithmetic number, because the mean of its divisors is an integer number (16967592).

Almost surely, 265042413 is an apocalyptic number.

It is an amenable number.

65042413 is a deficient number, since it is larger than the sum of its proper divisors (2827955).

65042413 is a wasteful number, since it uses less digits than its factorization.

65042413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827954.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 65042413 is about 8064.8876619579. The cubic root of 65042413 is about 402.1600086610.

Adding to 65042413 its reverse (31424056), we get a palindrome (96466469).

The spelling of 65042413 in words is "sixty-five million, forty-two thousand, four hundred thirteen".

Divisors: 1 23 2827931 65042413