Base | Representation |
---|---|
bin | 100100101010000… |
… | …1011000111010101 |
3 | 10011201111202022220 |
4 | 1021110023013111 |
5 | 10004341301143 |
6 | 322015412553 |
7 | 42324020136 |
oct | 11124130725 |
9 | 3151452286 |
10 | 1230025173 |
11 | 581354133 |
12 | 2a3b24159 |
13 | 167aa7a60 |
14 | b9507c8d |
15 | 72ebbd83 |
hex | 4950b1d5 |
1230025173 has 32 divisors (see below), whose sum is σ = 1863792000. Its totient is φ = 715309056.
The previous prime is 1230025163. The next prime is 1230025177. The reversal of 1230025173 is 3715200321.
It is not a de Polignac number, because 1230025173 - 25 = 1230025141 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230025177) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330861 + ... + 334557.
It is an arithmetic number, because the mean of its divisors is an integer number (58243500).
Almost surely, 21230025173 is an apocalyptic number.
1230025173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
1230025173 is a deficient number, since it is larger than the sum of its proper divisors (633766827).
1230025173 is a wasteful number, since it uses less digits than its factorization.
1230025173 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4181.
The product of its (nonzero) digits is 1260, while the sum is 24.
The square root of 1230025173 is about 35071.7147142822. The cubic root of 1230025173 is about 1071.4485789610.
Adding to 1230025173 its reverse (3715200321), we get a palindrome (4945225494).
It can be divided in two parts, 12300 and 25173, that added together give a palindrome (37473).
The spelling of 1230025173 in words is "one billion, two hundred thirty million, twenty-five thousand, one hundred seventy-three".
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