Base | Representation |
---|---|
bin | 100011110011010… |
… | …1101011101101001 |
3 | 10002201111212222122 |
4 | 1013212231131221 |
5 | 4430020030100 |
6 | 315112401025 |
7 | 41525064620 |
oct | 10746553551 |
9 | 3081455878 |
10 | 1201330025 |
11 | 567135035 |
12 | 2963a6175 |
13 | 161b6b98c |
14 | b57986b7 |
15 | 706ee985 |
hex | 479ad769 |
1201330025 has 24 divisors (see below), whose sum is σ = 1705992000. Its totient is φ = 822058560.
The previous prime is 1201330021. The next prime is 1201330037. The reversal of 1201330025 is 5200331021.
It is not a de Polignac number, because 1201330025 - 22 = 1201330021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1201329985 and 1201330012.
It is not an unprimeable number, because it can be changed into a prime (1201330021) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80447 + ... + 94203.
It is an arithmetic number, because the mean of its divisors is an integer number (71083000).
Almost surely, 21201330025 is an apocalyptic number.
It is an amenable number.
1201330025 is a deficient number, since it is larger than the sum of its proper divisors (504661975).
1201330025 is a wasteful number, since it uses less digits than its factorization.
1201330025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14273 (or 14268 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 1201330025 is about 34660.2080922778. The cubic root of 1201330025 is about 1063.0510249093.
Adding to 1201330025 its reverse (5200331021), we get a palindrome (6401661046).
The spelling of 1201330025 in words is "one billion, two hundred one million, three hundred thirty thousand, twenty-five".
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