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2021130102 = 2317109181789
BaseRepresentation
bin111100001110111…
…1111111101110110
312012212010001021110
41320131333331312
513114402130402
6532315455450
7101041215405
oct17035777566
95185101243
102021130102
11947969a62
12484a57586
13262964c94
141525d963c
15bc68856c
hex7877ff76

2021130102 has 32 divisors (see below), whose sum is σ = 4319330400. Its totient is φ = 628259328.

The previous prime is 2021130079. The next prime is 2021130113. The reversal of 2021130102 is 2010311202.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 79777 + ... + 102012.

It is an arithmetic number, because the mean of its divisors is an integer number (134979075).

Almost surely, 22021130102 is an apocalyptic number.

2021130102 is an abundant number, since it is smaller than the sum of its proper divisors (2298200298).

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

2021130102 is a wasteful number, since it uses less digits than its factorization.

2021130102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181920.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2021130102 is about 44956.9805703186. The cubic root of 2021130102 is about 1264.3425584889.

Adding to 2021130102 its reverse (2010311202), we get a palindrome (4031441304).

The spelling of 2021130102 in words is "two billion, twenty-one million, one hundred thirty thousand, one hundred two".

Divisors: 1 2 3 6 17 34 51 102 109 218 327 654 1853 3706 5559 11118 181789 363578 545367 1090734 3090413 6180826 9271239 18542478 19815001 39630002 59445003 118890006 336855017 673710034 1010565051 2021130102