Base | Representation |
---|---|
bin | 100100101010100… |
… | …1111001110100000 |
3 | 10011202000221000202 |
4 | 1021111033032200 |
5 | 10004424213120 |
6 | 322025404332 |
7 | 42326261411 |
oct | 11125171640 |
9 | 3152027022 |
10 | 1230304160 |
11 | 5815247a8 |
12 | 2a40396a8 |
13 | 167b74a37 |
14 | b957b808 |
15 | 73024875 |
hex | 4954f3a0 |
1230304160 has 24 divisors (see below), whose sum is σ = 2906593956. Its totient is φ = 492121600.
The previous prime is 1230304147. The next prime is 1230304177. The reversal of 1230304160 is 614030321.
It can be written as a sum of positive squares in 2 ways, for example, as 1142169616 + 88134544 = 33796^2 + 9388^2 .
It is a super-2 number, since 2×12303041602 = 3027296652226611200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3844541 + ... + 3844860.
Almost surely, 21230304160 is an apocalyptic number.
1230304160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1230304160 is an abundant number, since it is smaller than the sum of its proper divisors (1676289796).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230304160 is an equidigital number, since it uses as much as digits as its factorization.
1230304160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7689416 (or 7689408 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 1230304160 is about 35075.6918677308. The cubic root of 1230304160 is about 1071.5295793704.
Adding to 1230304160 its reverse (614030321), we get a palindrome (1844334481).
The spelling of 1230304160 in words is "one billion, two hundred thirty million, three hundred four thousand, one hundred sixty".
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