Base | Representation |
---|---|
bin | 11100001000111110… |
… | …010101001011111011 |
3 | 2212222202110201120000 |
4 | 130020332111023323 |
5 | 443340111003012 |
6 | 21514123204043 |
7 | 2116523024520 |
oct | 341076251373 |
9 | 85882421500 |
10 | 30215328507 |
11 | 118a5846581 |
12 | 5a33076623 |
13 | 2b06b88410 |
14 | 1668c9b147 |
15 | bbc9aeddc |
hex | 708f952fb |
30215328507 has 80 divisors (see below), whose sum is σ = 55610089920. Its totient is φ = 15921266688.
The previous prime is 30215328469. The next prime is 30215328511. The reversal of 30215328507 is 70582351203.
It is a happy number.
It is not a de Polignac number, because 30215328507 - 28 = 30215328251 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30215328547) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10974043 + ... + 10976795.
It is an arithmetic number, because the mean of its divisors is an integer number (695126124).
Almost surely, 230215328507 is an apocalyptic number.
30215328507 is a deficient number, since it is larger than the sum of its proper divisors (25394761413).
30215328507 is a wasteful number, since it uses less digits than its factorization.
30215328507 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4274 (or 4265 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 36.
The spelling of 30215328507 in words is "thirty billion, two hundred fifteen million, three hundred twenty-eight thousand, five hundred seven".
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