Base | Representation |
---|---|
bin | 11110001101010… |
… | …10011111001010 |
3 | 122122211022111012 |
4 | 33012222133022 |
5 | 1004332431010 |
6 | 41051203522 |
7 | 6164623316 |
oct | 1706523712 |
9 | 578738435 |
10 | 253405130 |
11 | 12004a030 |
12 | 70a465a2 |
13 | 40665584 |
14 | 25924b46 |
15 | 173a8005 |
hex | f1aa7ca |
253405130 has 32 divisors (see below), whose sum is σ = 498270528. Its totient is φ = 92022400.
The previous prime is 253405121. The next prime is 253405151. The reversal of 253405130 is 31504352.
It is a junction number, because it is equal to n+sod(n) for n = 253405096 and 253405105.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130265 + ... + 132195.
It is an arithmetic number, because the mean of its divisors is an integer number (15570954).
Almost surely, 2253405130 is an apocalyptic number.
253405130 is a deficient number, since it is larger than the sum of its proper divisors (244865398).
253405130 is a wasteful number, since it uses less digits than its factorization.
253405130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3142.
The product of its (nonzero) digits is 1800, while the sum is 23.
The square root of 253405130 is about 15918.7037788885. The cubic root of 253405130 is about 632.8077668152.
Adding to 253405130 its reverse (31504352), we get a palindrome (284909482).
The spelling of 253405130 in words is "two hundred fifty-three million, four hundred five thousand, one hundred thirty".
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