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20302211300 = 22527191151849
BaseRepresentation
bin10010111010000110…
…110010100011100100
31221101220012012012212
4102322012302203210
5313034331230200
613154322502552
71316051643260
oct227206624344
957356165185
1020302211300
118679083928
123b27204a58
131bb719b0a7
14da84b30a0
157dc565035
hex4ba1b28e4

20302211300 has 72 divisors (see below), whose sum is σ = 50613427200. Its totient is φ = 6924268800.

The previous prime is 20302211287. The next prime is 20302211311. The reversal of 20302211300 is 311220302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57776 + ... + 209624.

Almost surely, 220302211300 is an apocalyptic number.

20302211300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302211300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25306713600).

20302211300 is an abundant number, since it is smaller than the sum of its proper divisors (30311215900).

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

20302211300 is a wasteful number, since it uses less digits than its factorization.

20302211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152061 (or 152054 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20302211300 its reverse (311220302), we get a palindrome (20613431602).

The spelling of 20302211300 in words is "twenty billion, three hundred two million, two hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 191 350 382 700 764 955 1337 1910 2674 3820 4775 5348 6685 9550 13370 19100 26740 33425 66850 133700 151849 303698 607396 759245 1062943 1518490 2125886 3036980 3796225 4251772 5314715 7592450 10629430 15184900 21258860 26573575 29003159 53147150 58006318 106294300 116012636 145015795 203022113 290031590 406044226 580063180 725078975 812088452 1015110565 1450157950 2030221130 2900315900 4060442260 5075552825 10151105650 20302211300