Base | Representation |
---|---|
bin | 11100101111100011… |
… | …100010100100111010 |
3 | 2221122212110101021211 |
4 | 130233203202210322 |
5 | 1001201312220030 |
6 | 22102244553334 |
7 | 2141542625620 |
oct | 345743424472 |
9 | 87585411254 |
10 | 30862616890 |
11 | 120a8162956 |
12 | 5b939b284a |
13 | 2bab0000b1 |
14 | 16cac33510 |
15 | c0971e12a |
hex | 72f8e293a |
30862616890 has 32 divisors (see below), whose sum is σ = 63506096640. Its totient is φ = 10578587904.
The previous prime is 30862616849. The next prime is 30862616903. The reversal of 30862616890 is 9861626803.
It is a happy number.
It is a super-2 number, since 2×308626168902 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207391 + ... + 323629.
It is an arithmetic number, because the mean of its divisors is an integer number (1984565520).
Almost surely, 230862616890 is an apocalyptic number.
30862616890 is an abundant number, since it is smaller than the sum of its proper divisors (32643479750).
30862616890 is a wasteful number, since it uses less digits than its factorization.
30862616890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 120046.
The product of its (nonzero) digits is 746496, while the sum is 49.
The spelling of 30862616890 in words is "thirty billion, eight hundred sixty-two million, six hundred sixteen thousand, eight hundred ninety".
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