Base | Representation |
---|---|
bin | 10011100011111000… |
… | …000101110101110001 |
3 | 2000012201212000020101 |
4 | 103203320011311301 |
5 | 321003232014301 |
6 | 13352035112401 |
7 | 1342321364440 |
oct | 234370056561 |
9 | 60181760211 |
10 | 21003001201 |
11 | 89a8712736 |
12 | 40a1a42701 |
13 | 1c99425b80 |
14 | 10335b4d57 |
15 | 82dd41701 |
hex | 4e3e05d71 |
21003001201 has 16 divisors (see below), whose sum is σ = 25853567488. Its totient is φ = 16615368000.
The previous prime is 21003001183. The next prime is 21003001219. The reversal of 21003001201 is 10210030012.
It is an interprime number because it is at equal distance from previous prime (21003001183) and next prime (21003001219).
It is not a de Polignac number, because 21003001201 - 233 = 12413066609 is a prime.
It is a super-2 number, since 2×210030012012 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (21003001231) 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, 889336 + ... + 912646.
It is an arithmetic number, because the mean of its divisors is an integer number (1615847968).
Almost surely, 221003001201 is an apocalyptic number.
It is an amenable number.
21003001201 is a deficient number, since it is larger than the sum of its proper divisors (4850566287).
21003001201 is a wasteful number, since it uses less digits than its factorization.
21003001201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33232.
The product of its (nonzero) digits is 12, while the sum is 10.
Adding to 21003001201 its reverse (10210030012), we get a palindrome (31213031213).
The spelling of 21003001201 in words is "twenty-one billion, three million, one thousand, two hundred one".
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