Base | Representation |
---|---|
bin | 11100001000101011… |
… | …100001111100011000 |
3 | 2212222102012022221121 |
4 | 130020223201330120 |
5 | 443332330300044 |
6 | 21513425415024 |
7 | 2116433110000 |
oct | 341053417430 |
9 | 85872168847 |
10 | 30210400024 |
11 | 118a2a8a752 |
12 | 5a3149a474 |
13 | 2b05b5105c |
14 | 1668377000 |
15 | bbc339984 |
hex | 708ae1f18 |
30210400024 has 40 divisors (see below), whose sum is σ = 66081360060. Its totient is φ = 12947306064.
The previous prime is 30210399959. The next prime is 30210400027. The reversal of 30210400024 is 42000401203.
It is a super-2 number, since 2×302104000242 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30210399980 and 30210400007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30210400027) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 767194 + ... + 805609.
Almost surely, 230210400024 is an apocalyptic number.
It is an amenable number.
30210400024 is an abundant number, since it is smaller than the sum of its proper divisors (35870960036).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30210400024 is an equidigital number, since it uses as much as digits as its factorization.
30210400024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1572837 (or 1572812 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 16.
Adding to 30210400024 its reverse (42000401203), we get a palindrome (72210801227).
The spelling of 30210400024 in words is "thirty billion, two hundred ten million, four hundred thousand, twenty-four".
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