Base | Representation |
---|---|
bin | 100111000000100… |
… | …1011000000000000 |
3 | 10101012222112110200 |
4 | 1032001023000000 |
5 | 10140041230143 |
6 | 333514525200 |
7 | 44302502406 |
oct | 11601130000 |
9 | 3335875420 |
10 | 1308930048 |
11 | 611947578 |
12 | 306436800 |
13 | 17b24382a |
14 | c5ba7476 |
15 | 79da61d3 |
hex | 4e04b000 |
1308930048 has 78 divisors (see below), whose sum is σ = 3780998364. Its totient is φ = 436297728.
The previous prime is 1308930017. The next prime is 1308930071. The reversal of 1308930048 is 8400398031.
1308930048 is a `hidden beast` number, since 1 + 308 + 9 + 300 + 48 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1308929994 and 1308930021.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19111 + ... + 54617.
It is an arithmetic number, because the mean of its divisors is an integer number (48474338).
Almost surely, 21308930048 is an apocalyptic number.
1308930048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1308930048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1890499182).
1308930048 is an abundant number, since it is smaller than the sum of its proper divisors (2472068316).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1308930048 is an equidigital number, since it uses as much as digits as its factorization.
1308930048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35537 (or 35512 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 1308930048 is about 36179.1382981961. The cubic root of 1308930048 is about 1093.8862059359.
The spelling of 1308930048 in words is "one billion, three hundred eight million, nine hundred thirty thousand, forty-eight".
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