Base | Representation |
---|---|
bin | 11101001111110001… |
… | …001111110001100000 |
3 | 10000001112102210101200 |
4 | 131033301033301200 |
5 | 1003303142041200 |
6 | 22232033001200 |
7 | 2161124532300 |
oct | 351761176140 |
9 | 100045383350 |
10 | 31403080800 |
11 | 12355247443 |
12 | 61049b3200 |
13 | 2c65c81c20 |
14 | 173c91d600 |
15 | c3bdcb800 |
hex | 74fc4fc60 |
31403080800 has 1296 divisors, whose sum is σ = 142957537632. Its totient is φ = 6425395200.
The previous prime is 31403080789. The next prime is 31403080897. The reversal of 31403080800 is 808030413.
It is a congruent number.
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 215 ways as a sum of consecutive naturals, for example, 188042317 + ... + 188042483.
It is an arithmetic number, because the mean of its divisors is an integer number (110306742).
Almost surely, 231403080800 is an apocalyptic number.
31403080800 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 31403080800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71478768816).
31403080800 is an abundant number, since it is smaller than the sum of its proper divisors (111554456832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31403080800 is a wasteful number, since it uses less digits than its factorization.
31403080800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 261 (or 238 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The spelling of 31403080800 in words is "thirty-one billion, four hundred three million, eighty thousand, eight hundred".
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