Base | Representation |
---|---|
bin | 1000111111101110110… |
… | …10010100100000000000 |
3 | 1002112211021001020100020 |
4 | 10133313122110200000 |
5 | 20031010422100310 |
6 | 353555015253440 |
7 | 31221424553220 |
oct | 4376732244000 |
9 | 1075737036306 |
10 | 309093550080 |
11 | 10a0a4284047 |
12 | 4baa297a280 |
13 | 231bbaa4983 |
14 | 10d62b4a080 |
15 | 8090bb9170 |
hex | 47f7694800 |
309093550080 has 768 divisors, whose sum is σ = 1177473024000. Its totient is φ = 67735388160.
The previous prime is 309093550037. The next prime is 309093550081. The reversal of 309093550080 is 80055390903.
It is a tau number, because it is divible by the number of its divisors (768).
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (309093550081) by changing a digit.
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 63 ways as a sum of consecutive naturals, for example, 1326581644 + ... + 1326581876.
It is an arithmetic number, because the mean of its divisors is an integer number (1533168000).
Almost surely, 2309093550080 is an apocalyptic number.
309093550080 is a gapful number since it is divisible by the number (30) 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 309093550080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588736512000).
309093550080 is an abundant number, since it is smaller than the sum of its proper divisors (868379473920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
309093550080 is a wasteful number, since it uses less digits than its factorization.
309093550080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 500 (or 480 counting only the distinct ones).
The product of its (nonzero) digits is 145800, while the sum is 42.
The spelling of 309093550080 in words is "three hundred nine billion, ninety-three million, five hundred fifty thousand, eighty".
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