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520410030 = 23579832521
BaseRepresentation
bin11111000001001…
…101001110101110
31100021020120100120
4133001031032232
52031211110110
6123350105410
715616261260
oct3701151656
91307216316
10520410030
11247837838
1212634b266
1383a8003a
144d189b30
1530a4a870
hex1f04d3ae

520410030 has 64 divisors (see below), whose sum is σ = 1429429248. Its totient is φ = 118782720.

The previous prime is 520409977. The next prime is 520410041. The reversal of 520410030 is 30014025.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 520409991 and 520410009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205170 + ... + 207690.

It is an arithmetic number, because the mean of its divisors is an integer number (22334832).

Almost surely, 2520410030 is an apocalyptic number.

520410030 is an abundant number, since it is smaller than the sum of its proper divisors (909019218).

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

520410030 is a wasteful number, since it uses less digits than its factorization.

520410030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 520410030 is about 22812.4972328765. The cubic root of 520410030 is about 804.3564574935.

Adding to 520410030 its reverse (30014025), we get a palindrome (550424055).

The spelling of 520410030 in words is "five hundred twenty million, four hundred ten thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 983 1966 2521 2949 4915 5042 5898 6881 7563 9830 12605 13762 14745 15126 17647 20643 25210 29490 34405 35294 37815 41286 52941 68810 75630 88235 103215 105882 176470 206430 264705 529410 2478143 4956286 7434429 12390715 14868858 17347001 24781430 34694002 37172145 52041003 74344290 86735005 104082006 173470010 260205015 520410030