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2021013040050 = 232529887454247
BaseRepresentation
bin11101011010001101110…
…000111010101110110010
321011012120212120212220200
4131122031300322232302
5231103013314240200
64144235055220030
7266004405253344
oct35321560725662
97135525525820
102021013040050
1170a11a19a894
12287829217616
13118771a93694
146db63519294
1537887b53800
hex1d68dc3abb2

2021013040050 has 72 divisors (see below), whose sum is σ = 5430349506816. Its totient is φ = 538881114720.

The previous prime is 2021013040037. The next prime is 2021013040121. The reversal of 2021013040050 is 500403101202.

2021013040050 is a `hidden beast` number, since 2 + 0 + 210 + 1 + 3 + 0 + 400 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 4222027 + ... + 4676273.

It is an arithmetic number, because the mean of its divisors is an integer number (75421520928).

Almost surely, 22021013040050 is an apocalyptic number.

2021013040050 is an abundant number, since it is smaller than the sum of its proper divisors (3409336466766).

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

2021013040050 is a wasteful number, since it uses less digits than its factorization.

2021013040050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464152 (or 464144 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 2021013040050 its reverse (500403101202), we get a palindrome (2521416141252).

The spelling of 2021013040050 in words is "two trillion, twenty-one billion, thirteen million, forty thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 9887 19774 29661 49435 59322 88983 98870 148305 177966 247175 296610 444915 454247 494350 741525 889830 908494 1362741 1483050 2224575 2271235 2725482 4088223 4449150 4542470 6813705 8176446 11356175 13627410 20441115 22712350 34068525 40882230 68137050 102205575 204411150 4491140089 8982280178 13473420267 22455700445 26946840534 40420260801 44911400890 67367101335 80840521602 112278502225 134734202670 202101304005 224557004450 336835506675 404202608010 673671013350 1010506520025 2021013040050