Base | Representation |
---|---|
bin | 1001000100001110011111… |
… | …11000110101010100000000 |
3 | 2121120220102011011212021000 |
4 | 10202013033320311110000 |
5 | 10103114302314043010 |
6 | 110222400413532000 |
7 | 4125234226325520 |
oct | 442071770652400 |
9 | 77526364155230 |
10 | 19936431002880 |
11 | 6396aa1617687 |
12 | 229b9924a4000 |
13 | b17cc7310042 |
14 | 4cccdd7a9680 |
15 | 2488d41477c0 |
hex | 1221cfe35500 |
19936431002880 has 1152 divisors, whose sum is σ = 83708216524800. Its totient is φ = 4398664974336.
The previous prime is 19936431002879. The next prime is 19936431002893. The reversal of 19936431002880 is 8820013463991.
19936431002880 is a `hidden beast` number, since 19 + 9 + 36 + 4 + 310 + 0 + 288 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (1152).
It is a super-2 number, since 2×199364310028802 (a number of 27 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
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 127 ways as a sum of consecutive naturals, for example, 830015511 + ... + 830039529.
It is an arithmetic number, because the mean of its divisors is an integer number (72663382400).
Almost surely, 219936431002880 is an apocalyptic number.
19936431002880 is a gapful number since it is divisible by the number (10) 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 19936431002880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41854108262400).
19936431002880 is an abundant number, since it is smaller than the sum of its proper divisors (63771785521920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19936431002880 is a wasteful number, since it uses less digits than its factorization.
19936431002880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24176 (or 24156 counting only the distinct ones).
The product of its (nonzero) digits is 2239488, while the sum is 54.
The spelling of 19936431002880 in words is "nineteen trillion, nine hundred thirty-six billion, four hundred thirty-one million, two thousand, eight hundred eighty".
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