Base | Representation |
---|---|
bin | 111111011111001… |
… | …0000110100010001 |
3 | 12111110102222001010 |
4 | 1332332100310101 |
5 | 13330321013100 |
6 | 551214401133 |
7 | 103534556250 |
oct | 17676206421 |
9 | 5443388033 |
10 | 2130251025 |
11 | 9a3520141 |
12 | 4b55001a9 |
13 | 27c450186 |
14 | 162cc2797 |
15 | c7040750 |
hex | 7ef90d11 |
2130251025 has 144 divisors (see below), whose sum is σ = 4427018240. Its totient is φ = 882057600.
The previous prime is 2130251009. The next prime is 2130251041. The reversal of 2130251025 is 5201520312.
It is an interprime number because it is at equal distance from previous prime (2130251009) and next prime (2130251041).
It is not a de Polignac number, because 2130251025 - 24 = 2130251009 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 2130250992 and 2130251010.
It is a congruent number.
It is an unprimeable number.
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 143 ways as a sum of consecutive naturals, for example, 25665634 + ... + 25665716.
Almost surely, 22130251025 is an apocalyptic number.
2130251025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2130251025 is an abundant number, since it is smaller than the sum of its proper divisors (2296767215).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130251025 is a wasteful number, since it uses less digits than its factorization.
2130251025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 236 (or 148 counting only the distinct ones).
The product of its (nonzero) digits is 600, while the sum is 21.
The square root of 2130251025 is about 46154.6425075528. The cubic root of 2130251025 is about 1286.6988939804.
Adding to 2130251025 its reverse (5201520312), we get a palindrome (7331771337).
It can be divided in two parts, 21302 and 51025, that added together give a palindrome (72327).
The spelling of 2130251025 in words is "two billion, one hundred thirty million, two hundred fifty-one thousand, twenty-five".
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