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2130232020 = 223579375413
BaseRepresentation
bin111111011111000…
…1100001011010100
312111110101222222020
41332332030023110
513330314411040
6551214133140
7103534446660
oct17676141324
95443358866
102130232020
119a3507934
124b54b11b0
1327c444627
14162cb98a0
15c7039cd0
hex7ef8c2d4

2130232020 has 96 divisors (see below), whose sum is σ = 6825278208. Its totient is φ = 486300672.

The previous prime is 2130232007. The next prime is 2130232031. The reversal of 2130232020 is 202320312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390834 + ... + 396246.

It is an arithmetic number, because the mean of its divisors is an integer number (71096648).

Almost surely, 22130232020 is an apocalyptic number.

2130232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3412639104).

2130232020 is an abundant number, since it is smaller than the sum of its proper divisors (4695046188).

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

2130232020 is a wasteful number, since it uses less digits than its factorization.

2130232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6369 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2130232020 is about 46154.4366231460. The cubic root of 2130232020 is about 1286.6950675479.

Adding to 2130232020 its reverse (202320312), we get a palindrome (2332552332).

The spelling of 2130232020 in words is "two billion, one hundred thirty million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 937 1874 2811 3748 4685 5413 5622 6559 9370 10826 11244 13118 14055 16239 18740 19677 21652 26236 27065 28110 32478 32795 37891 39354 54130 56220 64956 65590 75782 78708 81195 98385 108260 113673 131180 151564 162390 189455 196770 227346 324780 378910 393540 454692 568365 757820 1136730 2273460 5071981 10143962 15215943 20287924 25359905 30431886 35503867 50719810 60863772 71007734 76079715 101439620 106511601 142015468 152159430 177519335 213023202 304318860 355038670 426046404 532558005 710077340 1065116010 2130232020