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520878048 = 25329223839
BaseRepresentation
bin11111000010111…
…111011111100000
31100022010100100120
4133002333133200
52031321044143
6123404120240
715623250615
oct3702773740
91308110316
10520878048
11248027429
12126536080
1383bb5082
144d26c50c
1530ade383
hex1f0bf7e0

520878048 has 96 divisors (see below), whose sum is σ = 1422489600. Its totient is φ = 166688256.

The previous prime is 520878041. The next prime is 520878053. The reversal of 520878048 is 840878025.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520878041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620413 + ... + 621251.

It is an arithmetic number, because the mean of its divisors is an integer number (14817600).

Almost surely, 2520878048 is an apocalyptic number.

520878048 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520878048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711244800).

520878048 is an abundant number, since it is smaller than the sum of its proper divisors (901611552).

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

520878048 is a wasteful number, since it uses less digits than its factorization.

520878048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 520878048 is about 22822.7528576200. The cubic root of 520878048 is about 804.5975113317.

The spelling of 520878048 in words is "five hundred twenty million, eight hundred seventy-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 48 58 87 96 116 174 223 232 348 446 464 669 696 839 892 928 1338 1392 1678 1784 2517 2676 2784 3356 3568 5034 5352 6467 6712 7136 10068 10704 12934 13424 19401 20136 21408 24331 25868 26848 38802 40272 48662 51736 72993 77604 80544 97324 103472 145986 155208 187097 194648 206944 291972 310416 374194 389296 561291 583944 620832 748388 778592 1122582 1167888 1496776 2245164 2335776 2993552 4490328 5425813 5987104 8980656 10851626 16277439 17961312 21703252 32554878 43406504 65109756 86813008 130219512 173626016 260439024 520878048