Base | Representation |
---|---|
bin | 100100101010001… |
… | …1101011001000000 |
3 | 10011201122120000110 |
4 | 1021110131121000 |
5 | 10004401200112 |
6 | 322021151320 |
7 | 42324451320 |
oct | 11124353100 |
9 | 3151576013 |
10 | 1230100032 |
11 | 5813a53a7 |
12 | 2a3b5b540 |
13 | 167b02b55 |
14 | b9527280 |
15 | 72ed413c |
hex | 4951d640 |
1230100032 has 56 divisors (see below), whose sum is σ = 3719592256. Its totient is φ = 351456768.
The previous prime is 1230100031. The next prime is 1230100043. The reversal of 1230100032 is 2300010321.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (56).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 1230099990 and 1230100017.
It is not an unprimeable number, because it can be changed into a prime (1230100031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456283 + ... + 458970.
Almost surely, 21230100032 is an apocalyptic number.
1230100032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1230100032 is an abundant number, since it is smaller than the sum of its proper divisors (2489492224).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230100032 is an equidigital number, since it uses as much as digits as its factorization.
1230100032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 915275 (or 915265 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 1230100032 is about 35072.7819255901. The cubic root of 1230100032 is about 1071.4703145438.
Adding to 1230100032 its reverse (2300010321), we get a palindrome (3530110353).
The spelling of 1230100032 in words is "one billion, two hundred thirty million, one hundred thousand, thirty-two".
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