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64002053 = 75598467
BaseRepresentation
bin1111010000100…
…1100000000101
311110102122022102
43310021200011
5112341031203
610203441445
71405002623
oct364114005
9143378272
1064002053
1133144765
1219526285
131034b74b
148700513
155943888
hex3d09805

64002053 has 4 divisors (see below), whose sum is σ = 64018080. Its totient is φ = 63986028.

The previous prime is 64001941. The next prime is 64002061. The reversal of 64002053 is 35020046.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35020046 = 217510023.

It is a cyclic number.

It is not a de Polignac number, because 64002053 - 28 = 64001797 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 (64002083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326 + ... + 11792.

It is an arithmetic number, because the mean of its divisors is an integer number (16004520).

Almost surely, 264002053 is an apocalyptic number.

It is an amenable number.

64002053 is a deficient number, since it is larger than the sum of its proper divisors (16027).

64002053 is an equidigital number, since it uses as much as digits as its factorization.

64002053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16026.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 64002053 is about 8000.1283114710. The cubic root of 64002053 is about 400.0042770376.

Adding to 64002053 its reverse (35020046), we get a palindrome (99022099).

The spelling of 64002053 in words is "sixty-four million, two thousand, fifty-three".

Divisors: 1 7559 8467 64002053