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538455180725 = 52711299645413
BaseRepresentation
bin1111101010111100110…
…11100000010110110101
31220110211212102022002022
413311132123200112311
532310224011240400
61051210215122525
753621264343020
oct7653633402665
91813755368068
10538455180725
111983a2a039a0
1288433673445
133ba12147a97
141c0c05821b7
15e016bbab85
hex7d5e6e05b5

538455180725 has 48 divisors (see below), whose sum is σ = 861142561920. Its totient is φ = 324085843200.

The previous prime is 538455180671. The next prime is 538455180727. The reversal of 538455180725 is 527081554835.

It is not a de Polignac number, because 538455180725 - 26 = 538455180661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538455180727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4766882 + ... + 4878531.

It is an arithmetic number, because the mean of its divisors is an integer number (17940470040).

Almost surely, 2538455180725 is an apocalyptic number.

538455180725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

538455180725 is a deficient number, since it is larger than the sum of its proper divisors (322687381195).

538455180725 is a wasteful number, since it uses less digits than its factorization.

538455180725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645470 (or 9645465 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 53.

The spelling of 538455180725 in words is "five hundred thirty-eight billion, four hundred fifty-five million, one hundred eighty thousand, seven hundred twenty-five".

Divisors: 1 5 7 11 25 29 35 55 77 145 175 203 275 319 385 725 1015 1595 1925 2233 5075 7975 11165 55825 9645413 48227065 67517891 106099543 241135325 279716977 337589455 530497715 742696801 1398584885 1687947275 1958018839 2652488575 3076886747 3713484005 6992924425 9790094195 15384433735 18567420025 21538207229 48950470975 76922168675 107691036145 538455180725