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52360840 = 2357187003
BaseRepresentation
bin1100011110111…
…1011010001000
310122112012120101
43013233122020
5101401021330
65110135144
71204026340
oct307573210
9118465511
1052360840
1127613524
12156514b4
13ab03b5c
146d4dd20
1548e44ca
hex31ef688

52360840 has 32 divisors (see below), whose sum is σ = 134642880. Its totient is φ = 17952192.

The previous prime is 52360823. The next prime is 52360849. The reversal of 52360840 is 4806325.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 52360799 and 52360808.

It is not an unprimeable number, because it can be changed into a prime (52360849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93222 + ... + 93781.

It is an arithmetic number, because the mean of its divisors is an integer number (4207590).

Almost surely, 252360840 is an apocalyptic number.

It is an amenable number.

52360840 is an abundant number, since it is smaller than the sum of its proper divisors (82282040).

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

52360840 is a wasteful number, since it uses less digits than its factorization.

52360840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187021 (or 187017 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 52360840 is about 7236.0790487667. The cubic root of 52360840 is about 374.1124848725.

The spelling of 52360840 in words is "fifty-two million, three hundred sixty thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 187003 374006 748012 935015 1309021 1496024 1870030 2618042 3740060 5236084 6545105 7480120 10472168 13090210 26180420 52360840