Base | Representation |
---|---|
bin | 11100101101001111… |
… | …101111111010100011 |
3 | 2221120011120001022210 |
4 | 130231033233322203 |
5 | 1001111402433321 |
6 | 22054342333203 |
7 | 2140562415324 |
oct | 345517577243 |
9 | 87504501283 |
10 | 30823874211 |
11 | 12088300a09 |
12 | 5b82a2a203 |
13 | 2ba2c86930 |
14 | 16c5a2a44b |
15 | c06119b76 |
hex | 72d3efea3 |
30823874211 has 32 divisors (see below), whose sum is σ = 46902240000. Its totient is φ = 17849524608.
The previous prime is 30823874171. The next prime is 30823874219. The reversal of 30823874211 is 11247832803.
It is not a de Polignac number, because 30823874211 - 29 = 30823873699 is a prime.
It is a super-2 number, since 2×308238742112 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a self number, because there is not a number n which added to its sum of digits gives 30823874211.
It is not an unprimeable number, because it can be changed into a prime (30823874219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29181 + ... + 249998.
It is an arithmetic number, because the mean of its divisors is an integer number (1465695000).
Almost surely, 230823874211 is an apocalyptic number.
30823874211 is a deficient number, since it is larger than the sum of its proper divisors (16078365789).
30823874211 is a wasteful number, since it uses less digits than its factorization.
30823874211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 279363.
The product of its (nonzero) digits is 64512, while the sum is 39.
The spelling of 30823874211 in words is "thirty billion, eight hundred twenty-three million, eight hundred seventy-four thousand, two hundred eleven".
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