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52087100 = 225213103389
BaseRepresentation
bin1100011010110…
…0100100111100
310122000022001212
43012230210330
5101313241400
65100223552
71201506302
oct306544474
9118008055
1052087100
112744689a
121553abb8
13aa39390
146cbc272
15488d335
hex31ac93c

52087100 has 72 divisors (see below), whose sum is σ = 123221280. Its totient is φ = 18996480.

The previous prime is 52087081. The next prime is 52087109. The reversal of 52087100 is 178025.

52087100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52087109) 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 23 ways as a sum of consecutive naturals, for example, 133706 + ... + 134094.

Almost surely, 252087100 is an apocalyptic number.

52087100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52087100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61610640).

52087100 is an abundant number, since it is smaller than the sum of its proper divisors (71134180).

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

52087100 is a wasteful number, since it uses less digits than its factorization.

52087100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 52087100 is about 7217.1393224740. The cubic root of 52087100 is about 373.4593979736.

The spelling of 52087100 in words is "fifty-two million, eighty-seven thousand, one hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 103 130 206 260 325 389 412 515 650 778 1030 1300 1339 1556 1945 2060 2575 2678 3890 5057 5150 5356 6695 7780 9725 10114 10300 13390 19450 20228 25285 26780 33475 38900 40067 50570 66950 80134 101140 126425 133900 160268 200335 252850 400670 505700 520871 801340 1001675 1041742 2003350 2083484 2604355 4006700 5208710 10417420 13021775 26043550 52087100