Base | Representation |
---|---|
bin | 100011110101000… |
… | …1001001101110011 |
3 | 10002210012121200220 |
4 | 1013222021031303 |
5 | 4430232331011 |
6 | 315143544123 |
7 | 41535534054 |
oct | 10752111563 |
9 | 3083177626 |
10 | 1202230131 |
11 | 56769a323 |
12 | 29675b043 |
13 | 1620c559b |
14 | b595072b |
15 | 7082b506 |
hex | 47a89373 |
1202230131 has 8 divisors (see below), whose sum is σ = 1605296064. Its totient is φ = 800325480.
The previous prime is 1202230121. The next prime is 1202230147. The reversal of 1202230131 is 1310322021.
1202230131 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1202230131 - 215 = 1202197363 is a prime.
It is a super-2 number, since 2×12022301312 = 2890714575768554322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1202230131.
It is not an unprimeable number, because it can be changed into a prime (1202230121) 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, 287901 + ... + 292046.
It is an arithmetic number, because the mean of its divisors is an integer number (200662008).
Almost surely, 21202230131 is an apocalyptic number.
1202230131 is a deficient number, since it is larger than the sum of its proper divisors (403065933).
1202230131 is an equidigital number, since it uses as much as digits as its factorization.
1202230131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 580641.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 1202230131 is about 34673.1903781582. The cubic root of 1202230131 is about 1063.3164584170.
Adding to 1202230131 its reverse (1310322021), we get a palindrome (2512552152).
The spelling of 1202230131 in words is "one billion, two hundred two million, two hundred thirty thousand, one hundred thirty-one".
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