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52059040 = 2551122689
BaseRepresentation
bin1100011010010…
…1101110100000
310121221212120121
43012211232200
5101311342130
65055450024
71201331425
oct306455640
9117855517
1052059040
1127427800
1215526914
13aa29687
146cb1d4c
154884d7a
hex31a5ba0

52059040 has 72 divisors (see below), whose sum is σ = 135237060. Its totient is φ = 18923520.

The previous prime is 52059017. The next prime is 52059043. The reversal of 52059040 is 4095025.

It can be written as a sum of positive squares in 2 ways, for example, as 45319824 + 6739216 = 6732^2 + 2596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52058996 and 52059014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52059043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18016 + ... + 20704.

Almost surely, 252059040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52059040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67618530).

52059040 is an abundant number, since it is smaller than the sum of its proper divisors (83178020).

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

52059040 is a wasteful number, since it uses less digits than its factorization.

52059040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 52059040 is about 7215.1950770579. The cubic root of 52059040 is about 373.3923234450.

The spelling of 52059040 in words is "fifty-two million, fifty-nine thousand, forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 121 160 176 220 242 352 440 484 605 880 968 1210 1760 1936 2420 2689 3872 4840 5378 9680 10756 13445 19360 21512 26890 29579 43024 53780 59158 86048 107560 118316 147895 215120 236632 295790 325369 430240 473264 591580 650738 946528 1183160 1301476 1626845 2366320 2602952 3253690 4732640 5205904 6507380 10411808 13014760 26029520 52059040