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520832712 = 233197116087
BaseRepresentation
bin11111000010110…
…100011011001000
31100022001001011110
4133002310123020
52031313121322
6123403130320
715623001501
oct3702643310
91308031143
10520832712
11247aa6364
121265139a0
1383b9a54a
144d259ba8
1530ad0c0c
hex1f0b46c8

520832712 has 64 divisors (see below), whose sum is σ = 1390003200. Its totient is φ = 162146880.

The previous prime is 520832699. The next prime is 520832777. The reversal of 520832712 is 217238025.

It is a self number, because there is not a number n which added to its sum of digits gives 520832712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24333 + ... + 40419.

It is an arithmetic number, because the mean of its divisors is an integer number (21718800).

Almost surely, 2520832712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520832712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695001600).

520832712 is an abundant number, since it is smaller than the sum of its proper divisors (869170488).

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

520832712 is a wasteful number, since it uses less digits than its factorization.

520832712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16186 (or 16182 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 520832712 is about 22821.7596166466. The cubic root of 520832712 is about 804.5741672295.

The spelling of 520832712 in words is "five hundred twenty million, eight hundred thirty-two thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 71 76 114 142 152 213 228 284 426 456 568 852 1349 1704 2698 4047 5396 8094 10792 16087 16188 32174 32376 48261 64348 96522 128696 193044 305653 386088 611306 916959 1142177 1222612 1833918 2284354 2445224 3426531 3667836 4568708 6853062 7335672 9137416 13706124 21701363 27412248 43402726 65104089 86805452 130208178 173610904 260416356 520832712