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21048500130 = 2357911110023
BaseRepresentation
bin10011100110100101…
…101001111110100010
32000022220110121000220
4103212211221332202
5321101404001010
613400342223510
71343413204410
oct234645517642
960286417026
1021048500130
118a21369759
1240b5124b96
131ca5996608
14103965a2b0
15832d2c970
hex4e6969fa2

21048500130 has 64 divisors (see below), whose sum is σ = 57796927488. Its totient is φ = 4805760960.

The previous prime is 21048500051. The next prime is 21048500149. The reversal of 21048500130 is 3100584012.

It is a super-3 number, since 3×210485001303 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 21048500130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136299 + ... + 246321.

It is an arithmetic number, because the mean of its divisors is an integer number (903076992).

Almost surely, 221048500130 is an apocalyptic number.

21048500130 is an abundant number, since it is smaller than the sum of its proper divisors (36748427358).

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

21048500130 is a wasteful number, since it uses less digits than its factorization.

21048500130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110951.

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 21048500130 in words is "twenty-one billion, forty-eight million, five hundred thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 911 1822 2733 4555 5466 6377 9110 12754 13665 19131 27330 31885 38262 63770 95655 110023 191310 220046 330069 550115 660138 770161 1100230 1540322 1650345 2310483 3300690 3850805 4620966 7701610 11552415 23104830 100230953 200461906 300692859 501154765 601385718 701616671 1002309530 1403233342 1503464295 2104850013 3006928590 3508083355 4209700026 7016166710 10524250065 21048500130