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308239308480 = 26352415772309
BaseRepresentation
bin1000111110001000111…
…11101001011011000000
31002110121201122021011110
410133010133221123000
520022233230332410
6353334142043320
731161312615015
oct4370437513300
91073551567143
10308239308480
111097a6065754
124b8a4879540
13230b3b0cb7c
1410cc150170c
158040bca720
hex47c47e96c0

308239308480 has 224 divisors, whose sum is σ = 984850130880. Its totient is φ = 81678827520.

The previous prime is 308239308467. The next prime is 308239308491. The reversal of 308239308480 is 84803932803.

It is a happy number.

It is a super-2 number, since 2×3082393084802 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 31 ways as a sum of consecutive naturals, for example, 133493566 + ... + 133495874.

It is an arithmetic number, because the mean of its divisors is an integer number (4396652370).

Almost surely, 2308239308480 is an apocalyptic number.

308239308480 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 308239308480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492425065440).

308239308480 is an abundant number, since it is smaller than the sum of its proper divisors (676610822400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308239308480 is a wasteful number, since it uses less digits than its factorization.

308239308480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 308239308480 in words is "three hundred eight billion, two hundred thirty-nine million, three hundred eight thousand, four hundred eighty".