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52055530 = 2517306209
BaseRepresentation
bin1100011010010…
…0110111101010
310121221200202121
43012210313222
5101311234110
65055421454
71201315252
oct306446752
9117850677
1052055530
11274250aa
121552488a
13aa27bb7
146cb0962
154883cda
hex31a4dea

52055530 has 16 divisors (see below), whose sum is σ = 99212040. Its totient is φ = 19597312.

The previous prime is 52055519. The next prime is 52055539. The reversal of 52055530 is 3555025.

It can be written as a sum of positive squares in 4 ways, for example, as 51969681 + 85849 = 7209^2 + 293^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52055495 and 52055504.

It is not an unprimeable number, because it can be changed into a prime (52055539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152935 + ... + 153274.

Almost surely, 252055530 is an apocalyptic number.

52055530 is a deficient number, since it is larger than the sum of its proper divisors (47156510).

52055530 is a wasteful number, since it uses less digits than its factorization.

52055530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306233.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 52055530 is about 7214.9518362911. The cubic root of 52055530 is about 373.3839314570.

The spelling of 52055530 in words is "fifty-two million, fifty-five thousand, five hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 306209 612418 1531045 3062090 5205553 10411106 26027765 52055530