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520222340 = 225112364647
BaseRepresentation
bin11111000000011…
…111011010000100
31100020220000220002
4133000133122010
52031134103330
6123342100432
715614550131
oct3700373204
91306800802
10520222340
11247719820
1212627a718
1383a15791
144d13b588
1530a0ee45
hex1f01f684

520222340 has 24 divisors (see below), whose sum is σ = 1191782592. Its totient is φ = 189171680.

The previous prime is 520222333. The next prime is 520222361. The reversal of 520222340 is 43222025.

Adding to 520222340 its reverse (43222025), we get a palindrome (563444365).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182104 + ... + 1182543.

It is an arithmetic number, because the mean of its divisors is an integer number (49657608).

Almost surely, 2520222340 is an apocalyptic number.

It is an amenable number.

520222340 is an abundant number, since it is smaller than the sum of its proper divisors (671560252).

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

520222340 is a wasteful number, since it uses less digits than its factorization.

520222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364667 (or 2364665 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 520222340 is about 22808.3831079715. The cubic root of 520222340 is about 804.2597466899.

The spelling of 520222340 in words is "five hundred twenty million, two hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 2364647 4729294 9458588 11823235 23646470 26011117 47292940 52022234 104044468 130055585 260111170 520222340