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530030252780 = 225783109141809
BaseRepresentation
bin1111011011010000100…
…00111101001011101100
31212200002201102121121222
413231220100331023230
532141000221042110
61043254215442512
753202433545620
oct7555020751354
91780081377558
10530030252780
1119486a294926
1286882086438
133ac9b875c12
141b9216a5180
15dbc2235c55
hex7b6843d2ec

530030252780 has 96 divisors (see below), whose sum is σ = 1288609620480. Its totient is φ = 179366353920.

The previous prime is 530030252749. The next prime is 530030252789. The reversal of 530030252780 is 87252030035.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 530030252780.

It is not an unprimeable number, because it can be changed into a prime (530030252789) 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, 12656516 + ... + 12698324.

It is an arithmetic number, because the mean of its divisors is an integer number (13423016880).

Almost surely, 2530030252780 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 530030252780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644304810240).

530030252780 is an abundant number, since it is smaller than the sum of its proper divisors (758579367700).

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

530030252780 is a wasteful number, since it uses less digits than its factorization.

530030252780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42999 (or 42997 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 530030252780 in words is "five hundred thirty billion, thirty million, two hundred fifty-two thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 83 140 166 332 415 581 830 1091 1162 1660 2182 2324 2905 4364 5455 5810 7637 10910 11620 15274 21820 30548 38185 41809 76370 83618 90553 152740 167236 181106 209045 292663 362212 418090 452765 585326 633871 836180 905530 1170652 1267742 1463315 1811060 2535484 2926630 3169355 3470147 5853260 6338710 6940294 12677420 13880588 17350735 24291029 34701470 45613619 48582058 69402940 91227238 97164116 121455145 182454476 228068095 242910290 319295333 456136190 485820580 638590666 912272380 1277181332 1596476665 3192953330 3785930377 6385906660 7571860754 15143721508 18929651885 26501512639 37859303770 53003025278 75718607540 106006050556 132507563195 265015126390 530030252780