Base | Representation |
---|---|
bin | 111110101111110… |
… | …0011110011111111 |
3 | 12102201201200100022 |
4 | 1331133203303333 |
5 | 13302442101101 |
6 | 544530322355 |
7 | 103113550514 |
oct | 17537436377 |
9 | 5381650308 |
10 | 2105425151 |
11 | 990504095 |
12 | 4a91293bb |
13 | 27726a2cb |
14 | 15d89d30b |
15 | c4c89a1b |
hex | 7d7e3cff |
2105425151 has 4 divisors (see below), whose sum is σ = 2107335072. Its totient is φ = 2103515232.
The previous prime is 2105425117. The next prime is 2105425181. The reversal of 2105425151 is 1515245012.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2105425151 - 222 = 2101230847 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2105425151.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2105425181) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953306 + ... + 955511.
It is an arithmetic number, because the mean of its divisors is an integer number (526833768).
Almost surely, 22105425151 is an apocalyptic number.
2105425151 is a deficient number, since it is larger than the sum of its proper divisors (1909921).
2105425151 is a wasteful number, since it uses less digits than its factorization.
2105425151 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1909920.
The product of its (nonzero) digits is 2000, while the sum is 26.
The square root of 2105425151 is about 45884.9120190940. The cubic root of 2105425151 is about 1281.6809683708.
The spelling of 2105425151 in words is "two billion, one hundred five million, four hundred twenty-five thousand, one hundred fifty-one".
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