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520022044 = 22179778839
BaseRepresentation
bin11110111111101…
…110100000011100
31100020111212010201
4132333232200130
52031111201134
6123333513244
715613054153
oct3677564034
91306455121
10520022044
112475a2293
121261a2824
1383975569
144d0c859a
15309c0914
hex1efee81c

520022044 has 24 divisors (see below), whose sum is σ = 973516320. Its totient is φ = 242190336.

The previous prime is 520022021. The next prime is 520022057. The reversal of 520022044 is 440220025.

It is a congruent number.

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, 32824 + ... + 46015.

It is an arithmetic number, because the mean of its divisors is an integer number (40563180).

Almost surely, 2520022044 is an apocalyptic number.

It is an amenable number.

520022044 is a deficient number, since it is larger than the sum of its proper divisors (453494276).

520022044 is a wasteful number, since it uses less digits than its factorization.

520022044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78957 (or 78955 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 520022044 is about 22803.9918435348. The cubic root of 520022044 is about 804.1565147468.

Adding to 520022044 its reverse (440220025), we get a palindrome (960242069).

The spelling of 520022044 in words is "five hundred twenty million, twenty-two thousand, forty-four".

Divisors: 1 2 4 17 34 68 97 194 388 1649 3298 6596 78839 157678 315356 1340263 2680526 5361052 7647383 15294766 30589532 130005511 260011022 520022044