Base | Representation |
---|---|
bin | 1111100011001… |
… | …11001000001011 |
3 | 100002110100001020 |
4 | 13301213020023 |
5 | 231343231320 |
6 | 20535523523 |
7 | 3142525362 |
oct | 761471013 |
9 | 302410036 |
10 | 130445835 |
11 | 676a6983 |
12 | 378295a3 |
13 | 210436b0 |
14 | 134787d9 |
15 | b6ba940 |
hex | 7c6720b |
130445835 has 32 divisors (see below), whose sum is σ = 225603840. Its totient is φ = 63980928.
The previous prime is 130445807. The next prime is 130445837. The reversal of 130445835 is 538544031.
It is not a de Polignac number, because 130445835 - 26 = 130445771 is a prime.
It is a super-2 number, since 2×1304458352 = 34032231737694450, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 130445796 and 130445805.
It is not an unprimeable number, because it can be changed into a prime (130445837) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58776 + ... + 60954.
It is an arithmetic number, because the mean of its divisors is an integer number (7050120).
Almost surely, 2130445835 is an apocalyptic number.
130445835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
130445835 is a deficient number, since it is larger than the sum of its proper divisors (95158005).
130445835 is a wasteful number, since it uses less digits than its factorization.
130445835 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2507.
The product of its (nonzero) digits is 28800, while the sum is 33.
The square root of 130445835 is about 11421.2886751014. The cubic root of 130445835 is about 507.1581461842.
Adding to 130445835 its reverse (538544031), we get a palindrome (668989866).
The spelling of 130445835 in words is "one hundred thirty million, four hundred forty-five thousand, eight hundred thirty-five".
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