Base | Representation |
---|---|
bin | 1000101000011001100011… |
… | …10111011010111110101110 |
3 | 2111012111110112112200221211 |
4 | 10110030301313122332232 |
5 | 4441433122023434123 |
6 | 104211232245545034 |
7 | 3666165312230251 |
oct | 424146167327656 |
9 | 74174415480854 |
10 | 18980297093038 |
11 | 6058553991566 |
12 | 216661311517a |
13 | a78ab0061188 |
14 | 498919187098 |
15 | 22dac39db40d |
hex | 114331ddafae |
18980297093038 has 16 divisors (see below), whose sum is σ = 28993996760400. Its totient is φ = 9316598360256.
The previous prime is 18980297093033. The next prime is 18980297093059. The reversal of 18980297093038 is 83039079208981.
It is a Harshad number since it is a multiple of its sum of digits (67).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18980297093033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241674063 + ... + 241752586.
It is an arithmetic number, because the mean of its divisors is an integer number (1812124797525).
Almost surely, 218980297093038 is an apocalyptic number.
18980297093038 is a deficient number, since it is larger than the sum of its proper divisors (10013699667362).
18980297093038 is a wasteful number, since it uses less digits than its factorization.
18980297093038 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 483427011.
The product of its (nonzero) digits is 47029248, while the sum is 67.
The spelling of 18980297093038 in words is "eighteen trillion, nine hundred eighty billion, two hundred ninety-seven million, ninety-three thousand, thirty-eight".
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