Base | Representation |
---|---|
bin | 11100000010010001… |
… | …111110100111010101 |
3 | 2212200221011210111221 |
4 | 130002101332213111 |
5 | 443122334212141 |
6 | 21455032330341 |
7 | 2113660414261 |
oct | 340221764725 |
9 | 85627153457 |
10 | 30103038421 |
11 | 11848420355 |
12 | 5a015439b1 |
13 | 2ab9830891 |
14 | 1657dcb0a1 |
15 | bb2bcdbd1 |
hex | 70247e9d5 |
30103038421 has 32 divisors (see below), whose sum is σ = 31912704000. Its totient is φ = 28363345920.
The previous prime is 30103038389. The next prime is 30103038431. The reversal of 30103038421 is 12483030103.
It is a cyclic number.
It is not a de Polignac number, because 30103038421 - 25 = 30103038389 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30103038431) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67044405 + ... + 67044853.
It is an arithmetic number, because the mean of its divisors is an integer number (997272000).
Almost surely, 230103038421 is an apocalyptic number.
It is an amenable number.
30103038421 is a deficient number, since it is larger than the sum of its proper divisors (1809665579).
30103038421 is a wasteful number, since it uses less digits than its factorization.
30103038421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 909.
The product of its (nonzero) digits is 1728, while the sum is 25.
Adding to 30103038421 its reverse (12483030103), we get a palindrome (42586068524).
The spelling of 30103038421 in words is "thirty billion, one hundred three million, thirty-eight thousand, four hundred twenty-one".
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