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53488465 = 552120533
BaseRepresentation
bin1100110000001…
…0101101010001
310201122111101021
43030002231101
5102143112330
65150235441
71216434022
oct314025521
9121574337
1053488465
1128213748
1215ab5b81
13b10a1a4
147164c49
154a6867a
hex3302b51

53488465 has 8 divisors (see below), whose sum is σ = 64312488. Its totient is φ = 42706560.

The previous prime is 53488459. The next prime is 53488481. The reversal of 53488465 is 56488435.

It can be written as a sum of positive squares in 4 ways, for example, as 4879681 + 48608784 = 2209^2 + 6972^2 .

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

It is not a de Polignac number, because 53488465 - 25 = 53488433 is a prime.

It is a super-2 number, since 2×534884652 = 5722031776112450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7662 + ... + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (8039061).

Almost surely, 253488465 is an apocalyptic number.

It is an amenable number.

53488465 is a deficient number, since it is larger than the sum of its proper divisors (10824023).

53488465 is a wasteful number, since it uses less digits than its factorization.

53488465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21059.

The product of its digits is 460800, while the sum is 43.

The square root of 53488465 is about 7313.5808602900. The cubic root of 53488465 is about 376.7790194855.

The spelling of 53488465 in words is "fifty-three million, four hundred eighty-eight thousand, four hundred sixty-five".

Divisors: 1 5 521 2605 20533 102665 10697693 53488465