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52279540000 = 25542613977
BaseRepresentation
bin110000101100000110…
…100111100100100000
311222221110011210122021
4300230012213210200
51324032030240000
640003351551224
73530351520652
oct605406474440
9158843153567
1052279540000
112019848a206
12a17038b514
134c1210026c
14275d3946d2
15155ea7411a
hexc2c1a7920

52279540000 has 60 divisors (see below), whose sum is σ = 128615559534. Its totient is φ = 20911808000.

The previous prime is 52279539997. The next prime is 52279540007. The reversal of 52279540000 is 4597225.

It can be written as a sum of positive squares in 5 ways, for example, as 118461456 + 52161078544 = 10884^2 + 228388^2 .

It is a super-2 number, since 2×522795400002 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52279540007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1286989 + ... + 1326988.

Almost surely, 252279540000 is an apocalyptic number.

52279540000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52279540000 is an abundant number, since it is smaller than the sum of its proper divisors (76336019534).

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

52279540000 is an equidigital number, since it uses as much as digits as its factorization.

52279540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614007 (or 2613984 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 52279540000 in words is "fifty-two billion, two hundred seventy-nine million, five hundred forty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 2613977 5227954 10455908 13069885 20911816 26139770 41823632 52279540 65349425 83647264 104559080 130698850 209118160 261397700 326747125 418236320 522795400 653494250 1045590800 1306988500 1633735625 2091181600 2613977000 3267471250 5227954000 6534942500 10455908000 13069885000 26139770000 52279540000