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21230303201 = 193061365039
BaseRepresentation
bin10011110001011011…
…001011011111100001
32000210120120010221222
4103301123023133201
5321434424200301
613430355024425
71351051412462
oct236133133741
960716503858
1021230303201
119004a53028
124145b9b115
13200454c0b3
141055862d69
15843c9031b
hex4f16cb7e1

21230303201 has 8 divisors (see below), whose sum is σ = 22355049600. Its totient is φ = 20106293040.

The previous prime is 21230303197. The next prime is 21230303207. The reversal of 21230303201 is 10230303212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21230303201 - 22 = 21230303197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21230303201.

It is not an unprimeable number, because it can be changed into a prime (21230303207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124361 + ... + 240678.

It is an arithmetic number, because the mean of its divisors is an integer number (2794381200).

Almost surely, 221230303201 is an apocalyptic number.

It is an amenable number.

21230303201 is a deficient number, since it is larger than the sum of its proper divisors (1124746399).

21230303201 is a wasteful number, since it uses less digits than its factorization.

21230303201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368119.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21230303201 its reverse (10230303212), we get a palindrome (31460606413).

The spelling of 21230303201 in words is "twenty-one billion, two hundred thirty million, three hundred three thousand, two hundred one".

Divisors: 1 19 3061 58159 365039 6935741 1117384379 21230303201