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52840810 = 25113712983
BaseRepresentation
bin1100100110010…
…0100101101010
310200102120222001
43021210211222
5102011401220
65124321214
71211065561
oct311444552
9120376861
1052840810
11279110a0
121584320a
13ac41469
147036bd8
15498b80a
hex326496a

52840810 has 32 divisors (see below), whose sum is σ = 106572672. Its totient is φ = 18694080.

The previous prime is 52840793. The next prime is 52840819. The reversal of 52840810 is 1804825.

It is a super-2 number, since 2×528408102 = 5584302402912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52840819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422 + ... + 10561.

It is an arithmetic number, because the mean of its divisors is an integer number (3330396).

Almost surely, 252840810 is an apocalyptic number.

52840810 is an abundant number, since it is smaller than the sum of its proper divisors (53731862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52840810 is a wasteful number, since it uses less digits than its factorization.

52840810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13038.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 52840810 is about 7269.1684531313. The cubic root of 52840810 is about 375.2521208260.

The spelling of 52840810 in words is "fifty-two million, eight hundred forty thousand, eight hundred ten".

Divisors: 1 2 5 10 11 22 37 55 74 110 185 370 407 814 2035 4070 12983 25966 64915 129830 142813 285626 480371 714065 960742 1428130 2401855 4803710 5284081 10568162 26420405 52840810