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2100303030 = 235710001443
BaseRepresentation
bin111110100110000…
…0001010010110110
312102101002110010010
41331030001102312
513300134144110
6544224441050
7103022165310
oct17514012266
95371073103
102100303030
11988625831
124a7479186
13276195a77
1415cd287b0
15c45c7020
hex7d3014b6

2100303030 has 32 divisors (see below), whose sum is σ = 5760831744. Its totient is φ = 480069216.

The previous prime is 2100303011. The next prime is 2100303059. The reversal of 2100303030 is 303030012.

It is a happy number.

It is a super-2 number, since 2×21003030302 = 8822545635654361800, which contains 22 as substring.

2100303030 is a modest number, since divided by 303030 gives 2100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2100302997 and 2100303015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5000512 + ... + 5000931.

It is an arithmetic number, because the mean of its divisors is an integer number (180025992).

Almost surely, 22100303030 is an apocalyptic number.

2100303030 is an abundant number, since it is smaller than the sum of its proper divisors (3660528714).

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

2100303030 is a wasteful number, since it uses less digits than its factorization.

2100303030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001460.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 2100303030 is about 45829.0631586551. The cubic root of 2100303030 is about 1280.6407578828.

Adding to 2100303030 its reverse (303030012), we get a palindrome (2403333042).

The spelling of 2100303030 in words is "two billion, one hundred million, three hundred three thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 10001443 20002886 30004329 50007215 60008658 70010101 100014430 140020202 150021645 210030303 300043290 350050505 420060606 700101010 1050151515 2100303030