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213303030220 = 22572741555853
BaseRepresentation
bin1100011010100111011…
…0011111000111001100
3202101120110021122021101
43012221312133013030
511443321033431340
6241553504112444
721260563561450
oct3065166370714
9671513248241
10213303030220
1182508aaa755
123540a905724
131716440cca7
14a476bac660
1558362d2c9a
hex31a9d9f1cc

213303030220 has 48 divisors (see below), whose sum is σ = 512114960448. Its totient is φ = 73105655040.

The previous prime is 213303030197. The next prime is 213303030247. The reversal of 213303030220 is 22030303312.

It is a happy 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, 105814 + ... + 661666.

It is an arithmetic number, because the mean of its divisors is an integer number (10669061676).

Almost surely, 2213303030220 is an apocalyptic number.

213303030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213303030220 is an abundant number, since it is smaller than the sum of its proper divisors (298811930228).

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

213303030220 is a wasteful number, since it uses less digits than its factorization.

213303030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558610 (or 558608 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 213303030220 its reverse (22030303312), we get a palindrome (235333333532).

The spelling of 213303030220 in words is "two hundred thirteen billion, three hundred three million, thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2741 5482 10964 13705 19187 27410 38374 54820 76748 95935 191870 383740 555853 1111706 2223412 2779265 3890971 5558530 7781942 11117060 15563884 19454855 38909710 77819420 1523593073 3047186146 6094372292 7617965365 10665151511 15235930730 21330303022 30471861460 42660606044 53325757555 106651515110 213303030220