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2021130130 = 251910637527
BaseRepresentation
bin111100001110111…
…1111111110010010
312012212010001022111
41320131333332102
513114402131010
6532315455534
7101041215445
oct17035777622
95185101274
102021130130
11947969a88
12484a575aa
13262964cb6
141525d965c
15bc68858a
hex7877ff92

2021130130 has 16 divisors (see below), whose sum is σ = 3829510080. Its totient is φ = 765901872.

The previous prime is 2021130127. The next prime is 2021130173. The reversal of 2021130130 is 310311202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021130130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5318574 + ... + 5318953.

It is an arithmetic number, because the mean of its divisors is an integer number (239344380).

Almost surely, 22021130130 is an apocalyptic number.

2021130130 is a deficient number, since it is larger than the sum of its proper divisors (1808379950).

2021130130 is a wasteful number, since it uses less digits than its factorization.

2021130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637553.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2021130130 is about 44956.9808817274. The cubic root of 2021130130 is about 1264.3425643275.

Adding to 2021130130 its reverse (310311202), we get a palindrome (2331441332).

The spelling of 2021130130 in words is "two billion, twenty-one million, one hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 10637527 21275054 53187635 106375270 202113013 404226026 1010565065 2021130130