Base | Representation |
---|---|
bin | 1111100011000… |
… | …00110110110001 |
3 | 100002102000210202 |
4 | 13301200312301 |
5 | 231341421040 |
6 | 20535204545 |
7 | 3142360442 |
oct | 761406661 |
9 | 302360722 |
10 | 130420145 |
11 | 67689649 |
12 | 37816755 |
13 | 21034aab |
14 | 1346d2c9 |
15 | b6b3015 |
hex | 7c60db1 |
130420145 has 8 divisors (see below), whose sum is σ = 158024256. Its totient is φ = 103322736.
The previous prime is 130420133. The next prime is 130420151. The reversal of 130420145 is 541024031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 130420145 - 224 = 113642929 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126107 + ... + 127136.
It is an arithmetic number, because the mean of its divisors is an integer number (19753032).
Almost surely, 2130420145 is an apocalyptic number.
It is an amenable number.
130420145 is a deficient number, since it is larger than the sum of its proper divisors (27604111).
130420145 is a wasteful number, since it uses less digits than its factorization.
130420145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 253351.
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 130420145 is about 11420.1639655480. The cubic root of 130420145 is about 507.1248507602.
Adding to 130420145 its reverse (541024031), we get a palindrome (671444176).
The spelling of 130420145 in words is "one hundred thirty million, four hundred twenty thousand, one hundred forty-five".
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