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2130404520 = 233517753371
BaseRepresentation
bin111111011111011…
…0110010010101000
312111110201202121010
41332332312102220
513330340421040
6551221543520
7103536065616
oct17676662250
95443652533
102130404520
119a36154a2
124b5574ba0
1327c4a4cba
14162d226b6
15c7070e80
hex7efb64a8

2130404520 has 32 divisors (see below), whose sum is σ = 6391213920. Its totient is φ = 568107840.

The previous prime is 2130404519. The next prime is 2130404543. The reversal of 2130404520 is 254040312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8876566 + ... + 8876805.

It is an arithmetic number, because the mean of its divisors is an integer number (199725435).

Almost surely, 22130404520 is an apocalyptic number.

2130404520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130404520 is an abundant number, since it is smaller than the sum of its proper divisors (4260809400).

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

2130404520 is a wasteful number, since it uses less digits than its factorization.

2130404520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17753385 (or 17753381 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2130404520 is about 46156.3053114090. The cubic root of 2130404520 is about 1286.7297975533.

Adding to 2130404520 its reverse (254040312), we get a palindrome (2384444832).

The spelling of 2130404520 in words is "two billion, one hundred thirty million, four hundred four thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 17753371 35506742 53260113 71013484 88766855 106520226 142026968 177533710 213040452 266300565 355067420 426080904 532601130 710134840 1065202260 2130404520