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530345420 = 225112375923
BaseRepresentation
bin11111100111000…
…110110111001100
31100221221100010222
4133213012313030
52041232023140
6124343050512
716066601363
oct3747066714
91327840128
10530345420
11252403400
12129740a38
1385b4b377
14506147da
153185e5b5
hex1f9c6dcc

530345420 has 72 divisors (see below), whose sum is σ = 1257475632. Its totient is φ = 187608960.

The previous prime is 530345419. The next prime is 530345429. The reversal of 530345420 is 24543035.

530345420 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 530345420.

It is not an unprimeable number, because it can be changed into a prime (530345429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86579 + ... + 92501.

Almost surely, 2530345420 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 530345420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628737816).

530345420 is an abundant number, since it is smaller than the sum of its proper divisors (727130212).

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

530345420 is a wasteful number, since it uses less digits than its factorization.

530345420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991 (or 5978 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 530345420 is about 23029.2296875080. The cubic root of 530345420 is about 809.4430047659.

Adding to 530345420 its reverse (24543035), we get a palindrome (554888455).

The spelling of 530345420 in words is "five hundred thirty million, three hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 37 44 55 74 110 121 148 185 220 242 370 407 484 605 740 814 1210 1628 2035 2420 4070 4477 5923 8140 8954 11846 17908 22385 23692 29615 44770 59230 65153 89540 118460 130306 219151 260612 325765 438302 651530 716683 876604 1095755 1303060 1433366 2191510 2410661 2866732 3583415 4383020 4821322 7166830 9642644 12053305 14333660 24106610 26517271 48213220 53034542 106069084 132586355 265172710 530345420