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30130210020 = 22353491438883
BaseRepresentation
bin11100000011111001…
…101000010011100100
32212202211022020221110
4130003321220103210
5443201313210040
621501442545020
72114440362621
oct340371502344
985684266843
1030130210020
1111861799819
125a0a668170
132ac2355351
14165b861348
15bb5299980
hex703e684e4

30130210020 has 48 divisors (see below), whose sum is σ = 84606379200. Its totient is φ = 8011694976.

The previous prime is 30130210007. The next prime is 30130210021. The reversal of 30130210020 is 2001203103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30130209978 and 30130210005.

It is not an unprimeable number, because it can be changed into a prime (30130210021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 698502 + ... + 740381.

It is an arithmetic number, because the mean of its divisors is an integer number (1762632900).

Almost surely, 230130210020 is an apocalyptic number.

30130210020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30130210020 is an abundant number, since it is smaller than the sum of its proper divisors (54476169180).

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

30130210020 is a wasteful number, since it uses less digits than its factorization.

30130210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439244 (or 1439242 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30130210020 its reverse (2001203103), we get a palindrome (32131413123).

The spelling of 30130210020 in words is "thirty billion, one hundred thirty million, two hundred ten thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 349 698 1047 1396 1745 2094 3490 4188 5235 6980 10470 20940 1438883 2877766 4316649 5755532 7194415 8633298 14388830 17266596 21583245 28777660 43166490 86332980 502170167 1004340334 1506510501 2008680668 2510850835 3013021002 5021701670 6026042004 7532552505 10043403340 15065105010 30130210020