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2121302230 = 25432472441
BaseRepresentation
bin111111001110000…
…1000000011010110
312110211121022121021
41332130020003112
513321023132410
6550254511354
7103365525415
oct17634100326
95424538537
102121302230
11999468843
124b250555a
1327a638c28
14161a3347c
15c6373eda
hex7e7080d6

2121302230 has 48 divisors (see below), whose sum is σ = 3994017984. Its totient is φ = 810821760.

The previous prime is 2121302219. The next prime is 2121302243. The reversal of 2121302230 is 322031212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 867810 + ... + 870250.

It is an arithmetic number, because the mean of its divisors is an integer number (83208708).

Almost surely, 22121302230 is an apocalyptic number.

2121302230 is a deficient number, since it is larger than the sum of its proper divisors (1872715754).

2121302230 is a wasteful number, since it uses less digits than its factorization.

2121302230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2121302230 is about 46057.5968760855. The cubic root of 2121302230 is about 1284.8946362458.

Adding to 2121302230 its reverse (322031212), we get a palindrome (2443333442).

The spelling of 2121302230 in words is "two billion, one hundred twenty-one million, three hundred two thousand, two hundred thirty".

Divisors: 1 2 5 10 43 47 86 94 215 235 430 470 1849 2021 2441 3698 4042 4882 9245 10105 12205 18490 20210 24410 86903 104963 114727 173806 209926 229454 434515 524815 573635 869030 1049630 1147270 4513409 4933261 9026818 9866522 22567045 24666305 45134090 49332610 212130223 424260446 1060651115 2121302230