Base | Representation |
---|---|
bin | 1100001010001… |
… | …10101001001110 |
3 | 21002221012101100 |
4 | 12011012221032 |
5 | 202103014410 |
6 | 14042123530 |
7 | 2345665452 |
oct | 605065116 |
9 | 232835340 |
10 | 102001230 |
11 | 52639041 |
12 | 2a1b05a6 |
13 | 18194676 |
14 | d792662 |
15 | 8e4c8c0 |
hex | 6146a4e |
102001230 has 48 divisors (see below), whose sum is σ = 272379744. Its totient is φ = 26464320.
The previous prime is 102001217. The next prime is 102001247. The reversal of 102001230 is 32100201.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (9).
102001230 is a modest number, since divided by 1230 gives 1020 as remainder.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11986 + ... + 18645.
It is an arithmetic number, because the mean of its divisors is an integer number (5674578).
Almost surely, 2102001230 is an apocalyptic number.
102001230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
102001230 is an abundant number, since it is smaller than the sum of its proper divisors (170378514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102001230 is a wasteful number, since it uses less digits than its factorization.
102001230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30681 (or 30678 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 102001230 is about 10099.5658322524. The cubic root of 102001230 is about 467.2347509209.
Adding to 102001230 its reverse (32100201), we get a palindrome (134101431).
The spelling of 102001230 in words is "one hundred two million, one thousand, two hundred thirty".
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