| Base | Representation |
|---|---|
| bin | 1011111001010101001… |
| … | …0110001011001110000 |
| 3 | 201112111202210200100200 |
| 4 | 2332111102301121300 |
| 5 | 11322021224022130 |
| 6 | 233515131315200 |
| 7 | 20523301642011 |
| oct | 2762522613160 |
| 9 | 645452720320 |
| 10 | 204368189040 |
| 11 | 79743573294 |
| 12 | 337365abb00 |
| 13 | 1636c2c4b12 |
| 14 | 9c6a2b9008 |
| 15 | 54b1bc7760 |
| hex | 2f954b1670 |
204368189040 has 120 divisors (see below), whose sum is σ = 686485288320. Its totient is φ = 54486369792.
The previous prime is 204368189023. The next prime is 204368189071. The reversal of 204368189040 is 40981863402.
It is a happy number.
204368189040 is a `hidden beast` number, since 20 + 436 + 81 + 89 + 0 + 40 = 666.
204368189040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Cunningham number, because it is equal to 4520712-1.
It is a tau number, because it is divible by the number of its divisors (120).
It is a super-2 number, since 2×2043681890402 (a number of 23 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (45) 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 (45).
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 23 ways as a sum of consecutive naturals, for example, 3588306 + ... + 3644814.
It is an arithmetic number, because the mean of its divisors is an integer number (5720710736).
Almost surely, 2204368189040 is an apocalyptic number.
204368189040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
204368189040 is an abundant number, since it is smaller than the sum of its proper divisors (482117099280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
204368189040 is a wasteful number, since it uses less digits than its factorization.
204368189040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61551 (or 61542 counting only the distinct ones).
The product of its (nonzero) digits is 331776, while the sum is 45.
The spelling of 204368189040 in words is "two hundred four billion, three hundred sixty-eight million, one hundred eighty-nine thousand, forty".
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