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520227207 = 3257803023
BaseRepresentation
bin11111000000100…
…000100110000111
31100020220021120100
4133000200212013
52031134232312
6123342135143
715614600253
oct3700404607
91306807510
10520227207
11247722445
121262814b3
1383a17a66
144d13d263
1530a115dc
hex1f020987

520227207 has 6 divisors (see below), whose sum is σ = 751439312. Its totient is φ = 346818132.

The previous prime is 520227187. The next prime is 520227221. The reversal of 520227207 is 702722025.

It is a happy number.

It is not a de Polignac number, because 520227207 - 215 = 520194439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520227107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28901503 + ... + 28901520.

Almost surely, 2520227207 is an apocalyptic number.

520227207 is a deficient number, since it is larger than the sum of its proper divisors (231212105).

520227207 is a wasteful number, since it uses less digits than its factorization.

520227207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57803029 (or 57803026 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 520227207 is about 22808.4898009491. The cubic root of 520227207 is about 804.2622547969.

The spelling of 520227207 in words is "five hundred twenty million, two hundred twenty-seven thousand, two hundred seven".

Divisors: 1 3 9 57803023 173409069 520227207