Base | Representation |
---|---|
bin | 100111101011000… |
… | …1111110100011110 |
3 | 10102202221121001000 |
4 | 1033112033310132 |
5 | 10211243411110 |
6 | 340032531130 |
7 | 44663166642 |
oct | 11726176436 |
9 | 3382847030 |
10 | 1331232030 |
11 | 62349a367 |
12 | 3119b0aa6 |
13 | 182a5197b |
14 | c8b30c22 |
15 | 7bd0e1c0 |
hex | 4f58fd1e |
1331232030 has 32 divisors (see below), whose sum is σ = 3549952800. Its totient is φ = 354995136.
The previous prime is 1331232011. The next prime is 1331232053. The reversal of 1331232030 is 302321331.
1331232030 is a `hidden beast` number, since 1 + 3 + 312 + 320 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 1331231994 and 1331232012.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2464975 + ... + 2465514.
It is an arithmetic number, because the mean of its divisors is an integer number (110936025).
Almost surely, 21331232030 is an apocalyptic number.
1331232030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1331232030 is an abundant number, since it is smaller than the sum of its proper divisors (2218720770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1331232030 is a wasteful number, since it uses less digits than its factorization.
1331232030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4930505 (or 4930499 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 1331232030 is about 36486.0525406627. The cubic root of 1331232030 is about 1100.0639163962.
Adding to 1331232030 its reverse (302321331), we get a palindrome (1633553361).
The spelling of 1331232030 in words is "one billion, three hundred thirty-one million, two hundred thirty-two thousand, thirty".
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