Base | Representation |
---|---|
bin | 11100001011000011… |
… | …000011011111111111 |
3 | 2220002011221101011211 |
4 | 130023003003133333 |
5 | 443423012334330 |
6 | 21521405025251 |
7 | 2120424534136 |
oct | 341303033777 |
9 | 86064841154 |
10 | 30250121215 |
11 | 1191344a886 |
12 | 5a42855227 |
13 | 2b1114aa12 |
14 | 166d75691d |
15 | bc0a83d2a |
hex | 70b0c37ff |
30250121215 has 8 divisors (see below), whose sum is σ = 38435448240. Its totient is φ = 22776561792.
The previous prime is 30250121207. The next prime is 30250121219. The reversal of 30250121215 is 51212105203.
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 30250121215 - 23 = 30250121207 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30250121219) 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, 177941805 + ... + 177941974.
It is an arithmetic number, because the mean of its divisors is an integer number (4804431030).
Almost surely, 230250121215 is an apocalyptic number.
30250121215 is a deficient number, since it is larger than the sum of its proper divisors (8185327025).
30250121215 is a wasteful number, since it uses less digits than its factorization.
30250121215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 355883801.
The product of its (nonzero) digits is 600, while the sum is 22.
Adding to 30250121215 its reverse (51212105203), we get a palindrome (81462226418).
The spelling of 30250121215 in words is "thirty billion, two hundred fifty million, one hundred twenty-one thousand, two hundred fifteen".
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