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520252000 = 25531131151
BaseRepresentation
bin11111000000100…
…110101001100000
31100020221112120121
4133000212221200
52031141031000
6123342450024
715615032452
oct3700465140
91306845517
10520252000
1124773a034
12126293914
1383a26128
144d1482d2
1530a18b1a
hex1f026a60

520252000 has 96 divisors (see below), whose sum is σ = 1290691584. Its totient is φ = 206080000.

The previous prime is 520251989. The next prime is 520252027. The reversal of 520252000 is 252025.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 451425 + ... + 452575.

It is an arithmetic number, because the mean of its divisors is an integer number (13444704).

Almost surely, 2520252000 is an apocalyptic number.

520252000 is a gapful number since it is divisible by the number (50) 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 520252000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645345792).

520252000 is an abundant number, since it is smaller than the sum of its proper divisors (770439584).

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

520252000 is a wasteful number, since it uses less digits than its factorization.

520252000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1271 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 520252000 is about 22809.0332982352. The cubic root of 520252000 is about 804.2750311102.

The spelling of 520252000 in words is "five hundred twenty million, two hundred fifty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 113 125 160 200 226 250 400 452 500 565 800 904 1000 1130 1151 1808 2000 2260 2302 2825 3616 4000 4520 4604 5650 5755 9040 9208 11300 11510 14125 18080 18416 22600 23020 28250 28775 36832 45200 46040 56500 57550 90400 92080 113000 115100 130063 143875 184160 226000 230200 260126 287750 452000 460400 520252 575500 650315 920800 1040504 1151000 1300630 2081008 2302000 2601260 3251575 4162016 4604000 5202520 6503150 10405040 13006300 16257875 20810080 26012600 32515750 52025200 65031500 104050400 130063000 260126000 520252000