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2021303030 = 251989119533
BaseRepresentation
bin111100001111010…
…1010001011110110
312012212102211111012
41320132222023312
513114423144110
6532323312222
7101042535515
oct17036521366
95185384435
102021303030
11947a7797a
12484b1b672
132629c58c6
1415264267c
15bc6be905
hex787aa2f6

2021303030 has 32 divisors (see below), whose sum is σ = 3872901600. Its totient is φ = 757354752.

The previous prime is 2021303023. The next prime is 2021303041. The reversal of 2021303030 is 303031202.

It is a junction number, because it is equal to n+sod(n) for n = 2021302996 and 2021303014.

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, 42857 + ... + 76676.

It is an arithmetic number, because the mean of its divisors is an integer number (121028175).

Almost surely, 22021303030 is an apocalyptic number.

2021303030 is a deficient number, since it is larger than the sum of its proper divisors (1851598570).

2021303030 is a wasteful number, since it uses less digits than its factorization.

2021303030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119648.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 2021303030 is about 44958.9037900169. The cubic root of 2021303030 is about 1264.3786165330.

Adding to 2021303030 its reverse (303031202), we get a palindrome (2324334232).

The spelling of 2021303030 in words is "two billion, twenty-one million, three hundred three thousand, thirty".

Divisors: 1 2 5 10 19 38 89 95 178 190 445 890 1691 3382 8455 16910 119533 239066 597665 1195330 2271127 4542254 10638437 11355635 21276874 22711270 53192185 106384370 202130303 404260606 1010651515 2021303030