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2021010020010 = 2325232933666667
BaseRepresentation
bin11101011010001101100…
…101011001011010101010
321011012120122220110012100
4131122031211121122222
5231103012031120020
64144234510354230
7266004340504512
oct35321545313252
97135518813170
102021010020010
1170a118517893
122878281bb976
13118771276b87
146db62d70842
1537887758a90
hex1d68d9596aa

2021010020010 has 96 divisors (see below), whose sum is σ = 5672160224640. Its totient is φ = 497727990144.

The previous prime is 2021010019871. The next prime is 2021010020027. The reversal of 2021010020010 is 100200101202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2021010019974 and 2021010020001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16773304 + ... + 16893363.

It is an arithmetic number, because the mean of its divisors is an integer number (59085002340).

Almost surely, 22021010020010 is an apocalyptic number.

2021010020010 is an abundant number, since it is smaller than the sum of its proper divisors (3651150204630).

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

2021010020010 is a wasteful number, since it uses less digits than its factorization.

2021010020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666732 (or 33666729 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2021010020010 its reverse (100200101202), we get a palindrome (2121210121212).

The spelling of 2021010020010 in words is "two trillion, twenty-one billion, ten million, twenty thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 23 29 30 45 46 58 69 87 90 115 138 145 174 207 230 261 290 345 414 435 522 667 690 870 1035 1305 1334 2001 2070 2610 3335 4002 6003 6670 10005 12006 20010 30015 60030 33666667 67333334 101000001 168333335 202000002 303000003 336666670 505000005 606000006 774333341 976333343 1010000010 1515000015 1548666682 1952666686 2323000023 2929000029 3030000030 3871666705 4646000046 4881666715 5858000058 6969000069 7743333410 8787000087 9763333430 11615000115 13938000138 14645000145 17574000174 22455666889 23230000230 29290000290 34845000345 43935000435 44911333778 67367000667 69690000690 87870000870 112278334445 134734001334 202101002001 224556668890 336835003335 404202004002 673670006670 1010505010005 2021010020010