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553504530220 = 22519139275389
BaseRepresentation
bin10000000110111110111…
…00001101111100101100
31221220200200102110112221
420003133130031330230
533032034124431340
61102135415005124
754663233610355
oct10033734157454
91856620373487
10553504530220
111a3815971a14
128b3336697a4
134026cc82105
141cb0b170d2c
15e5e7ecc44a
hex80df70df2c

553504530220 has 72 divisors (see below), whose sum is σ = 1232418423600. Its totient is φ = 208237336704.

The previous prime is 553504530199. The next prime is 553504530223. The reversal of 553504530220 is 22035405355.

It is not an unprimeable number, because it can be changed into a prime (553504530223) 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, 7304286 + ... + 7379674.

It is an arithmetic number, because the mean of its divisors is an integer number (17116922550).

Almost surely, 2553504530220 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 553504530220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616209211800).

553504530220 is an abundant number, since it is smaller than the sum of its proper divisors (678913893380).

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

553504530220 is a wasteful number, since it uses less digits than its factorization.

553504530220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75695 (or 75554 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 34.

Adding to 553504530220 its reverse (22035405355), we get a palindrome (575539935575).

The spelling of 553504530220 in words is "five hundred fifty-three billion, five hundred four million, five hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 139 190 278 380 556 695 1390 2641 2780 5282 10564 13205 19321 26410 38642 52820 75389 77284 96605 150778 193210 301556 367099 376945 386420 734198 753890 1432391 1468396 1507780 1835495 2864782 3670990 5729564 7161955 7341980 10479071 14323910 20958142 28647820 41916284 52395355 104790710 199102349 209581420 398204698 796409396 995511745 1456590869 1991023490 2913181738 3982046980 5826363476 7282954345 14565908690 27675226511 29131817380 55350453022 110700906044 138376132555 276752265110 553504530220