Base | Representation |
---|---|
bin | 100100111011010… |
… | …0011101111010010 |
3 | 10012100110200212202 |
4 | 1021312203233102 |
5 | 10014143221210 |
6 | 322540523202 |
7 | 42463441253 |
oct | 11166435722 |
9 | 3170420782 |
10 | 1239038930 |
11 | 586450318 |
12 | 2a6b50502 |
13 | 16991273c |
14 | ba7b2b2a |
15 | 73b9c9a5 |
hex | 49da3bd2 |
1239038930 has 16 divisors (see below), whose sum is σ = 2235095424. Its totient is φ = 494543280.
The previous prime is 1239038917. The next prime is 1239038951. The reversal of 1239038930 is 398309321.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129176 + ... + 138435.
It is an arithmetic number, because the mean of its divisors is an integer number (139693464).
Almost surely, 21239038930 is an apocalyptic number.
1239038930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1239038930 is a deficient number, since it is larger than the sum of its proper divisors (996056494).
1239038930 is a wasteful number, since it uses less digits than its factorization.
1239038930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 268081.
The product of its (nonzero) digits is 34992, while the sum is 38.
The square root of 1239038930 is about 35199.9848011331. The cubic root of 1239038930 is about 1074.0594419579.
The spelling of 1239038930 in words is "one billion, two hundred thirty-nine million, thirty-eight thousand, nine hundred thirty".
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