Base | Representation |
---|---|
bin | 100100000011111… |
… | …0101010101100001 |
3 | 10010022212000211020 |
4 | 1020013311111201 |
5 | 4434230404100 |
6 | 320022440053 |
7 | 41661640524 |
oct | 11007652541 |
9 | 3108760736 |
10 | 1210013025 |
11 | 571025771 |
12 | 299293029 |
13 | 1638bbc50 |
14 | b69b8bbb |
15 | 713675a0 |
hex | 481f5561 |
1210013025 has 24 divisors (see below), whose sum is σ = 2154445440. Its totient is φ = 595698240.
The previous prime is 1210012913. The next prime is 1210013083. The reversal of 1210013025 is 5203100121.
It is not a de Polignac number, because 1210013025 - 219 = 1209488737 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 1210012995 and 1210013013.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 619545 + ... + 621494.
It is an arithmetic number, because the mean of its divisors is an integer number (89768560).
Almost surely, 21210013025 is an apocalyptic number.
1210013025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1210013025 is a deficient number, since it is larger than the sum of its proper divisors (944432415).
1210013025 is a wasteful number, since it uses less digits than its factorization.
1210013025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1241065 (or 1241060 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 1210013025 is about 34785.2414825598. The cubic root of 1210013025 is about 1065.6060602981.
Adding to 1210013025 its reverse (5203100121), we get a palindrome (6413113146).
The spelling of 1210013025 in words is "one billion, two hundred ten million, thirteen thousand, twenty-five".
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