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53064409 = 264720047
BaseRepresentation
bin1100101001101…
…1001011011001
310200211221200111
43022123023121
5102041030114
65133204321
71213016506
oct312331331
9120757614
1053064409
1127a54092
12159306a1
13acbc178
1470944ad
1549d2bc4
hex329b2d9

53064409 has 4 divisors (see below), whose sum is σ = 53087104. Its totient is φ = 53041716.

The previous prime is 53064391. The next prime is 53064493. The reversal of 53064409 is 90446035.

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 53064409 - 25 = 53064377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53064509) 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, 7377 + ... + 12670.

It is an arithmetic number, because the mean of its divisors is an integer number (13271776).

Almost surely, 253064409 is an apocalyptic number.

It is an amenable number.

53064409 is a deficient number, since it is larger than the sum of its proper divisors (22695).

53064409 is a wasteful number, since it uses less digits than its factorization.

53064409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22694.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 53064409 is about 7284.5321744090. The cubic root of 53064409 is about 375.7806764717.

The spelling of 53064409 in words is "fifty-three million, sixty-four thousand, four hundred nine".

Divisors: 1 2647 20047 53064409