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520602030 = 232513449991
BaseRepresentation
bin11111000001111…
…100000110101110
31100021121022201200
4133001330012232
52031233231110
6123354150330
715621021114
oct3701740656
91307538650
10520602030
11247959013
121264223a6
1383b19550
144d1d9ab4
1530a876c0
hex1f07c1ae

520602030 has 96 divisors (see below), whose sum is σ = 1462406400. Its totient is φ = 127733760.

The previous prime is 520602023. The next prime is 520602031. The reversal of 520602030 is 30206025.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 520601994 and 520602012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520602031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 524835 + ... + 525825.

It is an arithmetic number, because the mean of its divisors is an integer number (15233400).

Almost surely, 2520602030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520602030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731203200).

520602030 is an abundant number, since it is smaller than the sum of its proper divisors (941804370).

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

520602030 is a wasteful number, since it uses less digits than its factorization.

520602030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1463 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 520602030 is about 22816.7050644917. The cubic root of 520602030 is about 804.4553650486.

Adding to 520602030 its reverse (30206025), we get a palindrome (550808055).

The spelling of 520602030 in words is "five hundred twenty million, six hundred two thousand, thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 449 585 898 991 1170 1347 1982 2245 2694 2973 4041 4490 4955 5837 5946 6735 8082 8919 9910 11674 12883 13470 14865 17511 17838 20205 25766 29185 29730 35022 38649 40410 44595 52533 58370 64415 77298 87555 89190 105066 115947 128830 175110 193245 231894 262665 386490 444959 525330 579735 889918 1159470 1334877 2224795 2669754 4004631 4449590 5784467 6674385 8009262 11568934 13348770 17353401 20023155 28922335 34706802 40046310 52060203 57844670 86767005 104120406 173534010 260301015 520602030