Search a number
-
+
52573765 = 561172373
BaseRepresentation
bin1100100010001…
…1011001000101
310122221000122111
43020203121011
5101424330030
65114501021
71205604166
oct310433105
9118830574
1052573765
11277494a2
1215734771
13ab79a4a
146da776d
15493762a
hex3223645

52573765 has 8 divisors (see below), whose sum is σ = 64123128. Its totient is φ = 41369280.

The previous prime is 52573757. The next prime is 52573793. The reversal of 52573765 is 56737525.

It can be written as a sum of positive squares in 4 ways, for example, as 2362369 + 50211396 = 1537^2 + 7086^2 .

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

It is not a de Polignac number, because 52573765 - 23 = 52573757 is a prime.

It is a Duffinian number.

It is a congruent 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, 85882 + ... + 86491.

It is an arithmetic number, because the mean of its divisors is an integer number (8015391).

Almost surely, 252573765 is an apocalyptic number.

It is an amenable number.

52573765 is a deficient number, since it is larger than the sum of its proper divisors (11549363).

52573765 is a wasteful number, since it uses less digits than its factorization.

52573765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172439.

The product of its digits is 220500, while the sum is 40.

The square root of 52573765 is about 7250.7768549308. The cubic root of 52573765 is about 374.6189076624.

The spelling of 52573765 in words is "fifty-two million, five hundred seventy-three thousand, seven hundred sixty-five".

Divisors: 1 5 61 305 172373 861865 10514753 52573765