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530423630 = 251117299781
BaseRepresentation
bin11111100111011…
…001111101001110
31100222002022102122
4133213121331032
52041242024010
6124344452542
716100345402
oct3747317516
91328068378
10530423630
11252457140
1212977a152
1385b77b49
1450635102
1531877855
hex1f9d9f4e

530423630 has 64 divisors (see below), whose sum is σ = 1140972480. Its totient is φ = 175257600.

The previous prime is 530423591. The next prime is 530423633. The reversal of 530423630 is 36324035.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 530423630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530423633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49340 + ... + 59120.

It is an arithmetic number, because the mean of its divisors is an integer number (17827695).

Almost surely, 2530423630 is an apocalyptic number.

530423630 is an abundant number, since it is smaller than the sum of its proper divisors (610548850).

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

530423630 is a wasteful number, since it uses less digits than its factorization.

530423630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 530423630 is about 23030.9276843118. The cubic root of 530423630 is about 809.4827923102.

Adding to 530423630 its reverse (36324035), we get a palindrome (566747665).

The spelling of 530423630 in words is "five hundred thirty million, four hundred twenty-three thousand, six hundred thirty".

Divisors: 1 2 5 10 11 17 22 29 34 55 58 85 110 145 170 187 290 319 374 493 638 935 986 1595 1870 2465 3190 4930 5423 9781 10846 19562 27115 48905 54230 97810 107591 166277 215182 283649 332554 537955 567298 831385 1075910 1418245 1662770 1829047 2836490 3120139 3658094 4822033 6240278 9145235 9644066 15600695 18290470 24110165 31201390 48220330 53042363 106084726 265211815 530423630