Base | Representation |
---|---|
bin | 1001011110110100… |
… | …0001101100010111 |
3 | 20120101011200022110 |
4 | 2113231001230113 |
5 | 20203030204111 |
6 | 1100315402103 |
7 | 120033346245 |
oct | 22755015427 |
9 | 6511150273 |
10 | 2545163031 |
11 | 1096750724 |
12 | 5b0453333 |
13 | 3173b3038 |
14 | 1a2049795 |
15 | ed69c5a6 |
hex | 97b41b17 |
2545163031 has 16 divisors (see below), whose sum is σ = 3621098240. Its totient is φ = 1585448640.
The previous prime is 2545163009. The next prime is 2545163039. The reversal of 2545163031 is 1303615452.
It is not a de Polignac number, because 2545163031 - 26 = 2545162967 is a prime.
It is a super-2 number, since 2×25451630312 = 12955709708738213922, which contains 22 as substring.
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 2545163031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2545163039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301675 + ... + 309996.
It is an arithmetic number, because the mean of its divisors is an integer number (226318640).
Almost surely, 22545163031 is an apocalyptic number.
2545163031 is a deficient number, since it is larger than the sum of its proper divisors (1075935209).
2545163031 is a wasteful number, since it uses less digits than its factorization.
2545163031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 611766.
The product of its (nonzero) digits is 10800, while the sum is 30.
The square root of 2545163031 is about 50449.6088290088. The cubic root of 2545163031 is about 1365.3328372967.
Adding to 2545163031 its reverse (1303615452), we get a palindrome (3848778483).
The spelling of 2545163031 in words is "two billion, five hundred forty-five million, one hundred sixty-three thousand, thirty-one".
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