Base | Representation |
---|---|
bin | 10010011111101111000… |
… | …000010111010101101110 |
3 | 11111111201221011020100120 |
4 | 102133233000113111232 |
5 | 131311024422440132 |
6 | 2411522333105410 |
7 | 160554121651254 |
oct | 22375700272556 |
9 | 4444657136316 |
10 | 1271025202542 |
11 | 450047655a97 |
12 | 1863bb928266 |
13 | 92b1b254984 |
14 | 4573736c5d4 |
15 | 230e030a02c |
hex | 127ef01756e |
1271025202542 has 8 divisors (see below), whose sum is σ = 2542050405096. Its totient is φ = 423675067512.
The previous prime is 1271025202507. The next prime is 1271025202549. The reversal of 1271025202542 is 2452025201721.
It is a sphenic number, since it is the product of 3 distinct primes.
1271025202542 is an admirable number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1271025202549) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105918766873 + ... + 105918766884.
It is an arithmetic number, because the mean of its divisors is an integer number (317756300637).
Almost surely, 21271025202542 is an apocalyptic number.
1271025202542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1271025202542 is a wasteful number, since it uses less digits than its factorization.
1271025202542 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 211837533762.
The product of its (nonzero) digits is 22400, while the sum is 33.
The spelling of 1271025202542 in words is "one trillion, two hundred seventy-one billion, twenty-five million, two hundred two thousand, five hundred forty-two".
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