Base | Representation |
---|---|
bin | 100111001000110… |
… | …0010010110111110 |
3 | 10101112001111012220 |
4 | 1032101202112332 |
5 | 10142141020110 |
6 | 334150510210 |
7 | 44354120553 |
oct | 11621422676 |
9 | 3345044186 |
10 | 1313220030 |
11 | 614307711 |
12 | 307965366 |
13 | 17c0b6395 |
14 | c65a2a2a |
15 | 7a452370 |
hex | 4e4625be |
1313220030 has 16 divisors (see below), whose sum is σ = 3151728144. Its totient is φ = 350192000.
The previous prime is 1313220019. The next prime is 1313220067. The reversal of 1313220030 is 300223131.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 1313219991 and 1313220009.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21886971 + ... + 21887030.
It is an arithmetic number, because the mean of its divisors is an integer number (196983009).
Almost surely, 21313220030 is an apocalyptic number.
1313220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1313220030 is an abundant number, since it is smaller than the sum of its proper divisors (1838508114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1313220030 is a wasteful number, since it uses less digits than its factorization.
1313220030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43774011.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 1313220030 is about 36238.3778610467. The cubic root of 1313220030 is about 1095.0799633021.
Adding to 1313220030 its reverse (300223131), we get a palindrome (1613443161).
The spelling of 1313220030 in words is "one billion, three hundred thirteen million, two hundred twenty thousand, thirty".
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