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520005055052 = 22719977453111
BaseRepresentation
bin1111001000100101011…
…01110111001001001100
31211201020001020210201102
413210102231313021030
532004432243230202
61034515333002232
752366132016120
oct7442255671114
91751201223642
10520005055052
1119059532a44a
1284944783378
133a0618a5562
141b250063580
15d7d704bd02
hex7912b7724c

520005055052 has 24 divisors (see below), whose sum is σ = 1094747485440. Its totient is φ = 211129871760.

The previous prime is 520005055039. The next prime is 520005055057. The reversal of 520005055052 is 250550500025.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (520005055057) 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, 488726024 + ... + 488727087.

It is an arithmetic number, because the mean of its divisors is an integer number (45614478560).

Almost surely, 2520005055052 is an apocalyptic number.

It is an amenable number.

520005055052 is an abundant number, since it is smaller than the sum of its proper divisors (574742430388).

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

520005055052 is a wasteful number, since it uses less digits than its factorization.

520005055052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977453141 (or 977453139 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

Adding to 520005055052 its reverse (250550500025), we get a palindrome (770555555077).

The spelling of 520005055052 in words is "five hundred twenty billion, five million, fifty-five thousand, fifty-two".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 977453111 1954906222 3909812444 6842171777 13684343554 18571609109 27368687108 37143218218 74286436436 130001263763 260002527526 520005055052