Base | Representation |
---|---|
bin | 11100001001000010… |
… | …010011101010011010 |
3 | 2212222211102200101000 |
4 | 130021002103222122 |
5 | 443340342331332 |
6 | 21514201405430 |
7 | 2116534625430 |
oct | 341102235232 |
9 | 85884380330 |
10 | 30216370842 |
11 | 118a6398709 |
12 | 5a33499876 |
13 | 2b07161998 |
14 | 166908cd50 |
15 | bbcb18b7c |
hex | 709093a9a |
30216370842 has 64 divisors (see below), whose sum is σ = 80076533760. Its totient is φ = 8257887792.
The previous prime is 30216370831. The next prime is 30216370879. The reversal of 30216370842 is 24807361203.
It is a happy number.
30216370842 is a `hidden beast` number, since 30 + 216 + 370 + 8 + 42 = 666.
It is a super-2 number, since 2×302163708422 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30216370797 and 30216370806.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1729078 + ... + 1746465.
It is an arithmetic number, because the mean of its divisors is an integer number (1251195840).
Almost surely, 230216370842 is an apocalyptic number.
30216370842 is an abundant number, since it is smaller than the sum of its proper divisors (49860162918).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30216370842 is a wasteful number, since it uses less digits than its factorization.
30216370842 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3475584 (or 3475578 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 36.
The spelling of 30216370842 in words is "thirty billion, two hundred sixteen million, three hundred seventy thousand, eight hundred forty-two".
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