Base | Representation |
---|---|
bin | 101100110101011011000… |
… | …110011100111110100000 |
3 | 101220112122120122011111000 |
4 | 230311123012130332200 |
5 | 400434412103010230 |
6 | 10315222342352000 |
7 | 435411355430400 |
oct | 54653306347640 |
9 | 11815576564430 |
10 | 3081019969440 |
11 | a887204a5a06 |
12 | 41915742b600 |
13 | 19470107441a |
14 | a919d2da800 |
15 | 5522753ab60 |
hex | 2cd5b19cfa0 |
3081019969440 has 1152 divisors, whose sum is σ = 13243722912000. Its totient is φ = 665181683712.
The previous prime is 3081019969439. The next prime is 3081019969453. The reversal of 3081019969440 is 449699101803.
It is a happy number.
3081019969440 is a `hidden beast` number, since 3 + 0 + 8 + 1 + 0 + 199 + 6 + 9 + 440 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1644964344 + ... + 1644966216.
It is an arithmetic number, because the mean of its divisors is an integer number (11496287250).
Almost surely, 23081019969440 is an apocalyptic number.
3081019969440 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 3081019969440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6621861456000).
3081019969440 is an abundant number, since it is smaller than the sum of its proper divisors (10162702942560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3081019969440 is a wasteful number, since it uses less digits than its factorization.
3081019969440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2339 (or 2318 counting only the distinct ones).
The product of its (nonzero) digits is 1679616, while the sum is 54.
The spelling of 3081019969440 in words is "three trillion, eighty-one billion, nineteen million, nine hundred sixty-nine thousand, four hundred forty".
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