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52858820 = 2257377563
BaseRepresentation
bin1100100110100…
…0111111000100
310200110111200002
43021220333010
5102012440240
65124540432
71211202230
oct311507704
9120414602
1052858820
1127923683
1215851718
13ac49711
14703d5c0
154991d15
hex3268fc4

52858820 has 24 divisors (see below), whose sum is σ = 126861504. Its totient is φ = 18122976.

The previous prime is 52858777. The next prime is 52858823. The reversal of 52858820 is 2885825.

52858820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52858823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188642 + ... + 188921.

It is an arithmetic number, because the mean of its divisors is an integer number (5285896).

Almost surely, 252858820 is an apocalyptic number.

It is an amenable number.

52858820 is an abundant number, since it is smaller than the sum of its proper divisors (74002684).

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

52858820 is a wasteful number, since it uses less digits than its factorization.

52858820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377579 (or 377577 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The square root of 52858820 is about 7270.4071412817. The cubic root of 52858820 is about 375.2947490081.

The spelling of 52858820 in words is "fifty-two million, eight hundred fifty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 377563 755126 1510252 1887815 2642941 3775630 5285882 7551260 10571764 13214705 26429410 52858820