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21054410141050 = 25211139730357451
BaseRepresentation
bin1001100100110000111001…
…01000110010110101111010
32202112210010001011110222001
410302120130220302311322
510224423412444003200
6112440132410451214
74302062624236516
oct462303450626572
982483101143861
1021054410141050
116788141701250
12244059b433b0a
13b99564bc30c0
1452b0789cd146
15267a1823076a
hex13261ca32d7a

21054410141050 has 96 divisors (see below), whose sum is σ = 46481873344704. Its totient is φ = 6994356480000.

The previous prime is 21054410141029. The next prime is 21054410141059. The reversal of 21054410141050 is 5014101445012.

It is not an unprimeable number, because it can be changed into a prime (21054410141059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14485176 + ... + 15872275.

It is an arithmetic number, because the mean of its divisors is an integer number (484186180674).

Almost surely, 221054410141050 is an apocalyptic number.

21054410141050 is an abundant number, since it is smaller than the sum of its proper divisors (25427463203654).

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

21054410141050 is a wasteful number, since it uses less digits than its factorization.

21054410141050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30357584 (or 30357579 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 21054410141050 its reverse (5014101445012), we get a palindrome (26068511586062).

The spelling of 21054410141050 in words is "twenty-one trillion, fifty-four billion, four hundred ten million, one hundred forty-one thousand, fifty".

Divisors: 1 2 5 10 11 13 22 25 26 50 55 65 97 110 130 143 194 275 286 325 485 550 650 715 970 1067 1261 1430 2134 2425 2522 3575 4850 5335 6305 7150 10670 12610 13871 26675 27742 31525 53350 63050 69355 138710 346775 693550 30357451 60714902 151787255 303574510 333931961 394646863 667863922 758936275 789293726 1517872550 1669659805 1973234315 2944672747 3339319610 3946468630 4341115493 5889345494 8348299025 8682230986 9866171575 14723363735 16696598050 19732343150 21705577465 29446727470 32391400217 38280745711 43411154930 64782800434 73616818675 76561491422 108527887325 147233637350 161957001085 191403728555 217055774650 323914002170 382807457110 421088202821 809785005425 842176405642 957018642775 1619570010850 1914037285550 2105441014105 4210882028210 10527205070525 21054410141050