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2123130030 = 235710110143
BaseRepresentation
bin111111010001100…
…0110010010101110
312110222001011212120
41332203012102232
513322010130110
6550402013410
7103420210320
oct17643062256
95428034776
102123130030
1199a4a701a
124b3047266
1327ab28b78
14161d8b610
15c65d5870
hex7e8c64ae

2123130030 has 32 divisors (see below), whose sum is σ = 5823442944. Its totient is φ = 485286816.

The previous prime is 2123130011. The next prime is 2123130047. The reversal of 2123130030 is 300313212.

It is a super-2 number, since 2×21231300302 = 9015362248575601800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2123129991 and 2123130009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5054862 + ... + 5055281.

It is an arithmetic number, because the mean of its divisors is an integer number (181982592).

Almost surely, 22123130030 is an apocalyptic number.

2123130030 is an abundant number, since it is smaller than the sum of its proper divisors (3700312914).

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

2123130030 is a wasteful number, since it uses less digits than its factorization.

2123130030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110160.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 2123130030 is about 46077.4351499734. The cubic root of 2123130030 is about 1285.2635694064.

Adding to 2123130030 its reverse (300313212), we get a palindrome (2423443242).

The spelling of 2123130030 in words is "two billion, one hundred twenty-three million, one hundred thirty thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 10110143 20220286 30330429 50550715 60660858 70771001 101101430 141542002 151652145 212313003 303304290 353855005 424626006 707710010 1061565015 2123130030