Base | Representation |
---|---|
bin | 1111100011000… |
… | …01100011011001 |
3 | 100002102011201112 |
4 | 13301201203121 |
5 | 231342014001 |
6 | 20535230105 |
7 | 3142401662 |
oct | 761414331 |
9 | 302364645 |
10 | 130423001 |
11 | 67690805 |
12 | 37818335 |
13 | 21036197 |
14 | 13470369 |
15 | b6b3cbb |
hex | 7c618d9 |
130423001 has 2 divisors, whose sum is σ = 130423002. Its totient is φ = 130423000.
The previous prime is 130422991. The next prime is 130423061. The reversal of 130423001 is 100324031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 127667401 + 2755600 = 11299^2 + 1660^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-130423001 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (130423061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65211500 + 65211501.
It is an arithmetic number, because the mean of its divisors is an integer number (65211501).
Almost surely, 2130423001 is an apocalyptic number.
It is an amenable number.
130423001 is a deficient number, since it is larger than the sum of its proper divisors (1).
130423001 is an equidigital number, since it uses as much as digits as its factorization.
130423001 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 130423001 is about 11420.2890068509. The cubic root of 130423001 is about 507.1285524838.
Adding to 130423001 its reverse (100324031), we get a palindrome (230747032).
The spelling of 130423001 in words is "one hundred thirty million, four hundred twenty-three thousand, one".
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