Base | Representation |
---|---|
bin | 11111010011010111101… |
… | …111000001011110111101 |
3 | 21121122101001221110000212 |
4 | 133103113233001132331 |
5 | 240220424341420120 |
6 | 4324111512202205 |
7 | 311261224314122 |
oct | 37232757013675 |
9 | 7548331843025 |
10 | 2151103076285 |
11 | 75a306675529 |
12 | 2a8a94099365 |
13 | 127b04500797 |
14 | 76184940749 |
15 | 3ae4d84e6c5 |
hex | 1f4d7bc17bd |
2151103076285 has 8 divisors (see below), whose sum is σ = 2581343527896. Its totient is φ = 1720869236800.
The previous prime is 2151103076281. The next prime is 2151103076347. The reversal of 2151103076285 is 5826703011512.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 45043270756 + 2106059805529 = 212234^2 + 1451227^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2151103076285 - 22 = 2151103076281 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2151103076281) 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, 906674 + ... + 2263683.
It is an arithmetic number, because the mean of its divisors is an integer number (322667940987).
Almost surely, 22151103076285 is an apocalyptic number.
It is an amenable number.
2151103076285 is a deficient number, since it is larger than the sum of its proper divisors (430240451611).
2151103076285 is a wasteful number, since it uses less digits than its factorization.
2151103076285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3306063.
The product of its (nonzero) digits is 100800, while the sum is 41.
Adding to 2151103076285 its reverse (5826703011512), we get a palindrome (7977806087797).
The spelling of 2151103076285 in words is "two trillion, one hundred fifty-one billion, one hundred three million, seventy-six thousand, two hundred eighty-five".
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