Base | Representation |
---|---|
bin | 1111100100101… |
… | …00010101111110 |
3 | 100002210202002121 |
4 | 13302110111332 |
5 | 231420143123 |
6 | 20543513154 |
7 | 3144226336 |
oct | 762242576 |
9 | 302722077 |
10 | 130631038 |
11 | 6781303a |
12 | 378b87ba |
13 | 210a9a95 |
14 | 134c60c6 |
15 | b70575d |
hex | 7c9457e |
130631038 has 4 divisors (see below), whose sum is σ = 195946560. Its totient is φ = 65315518.
The previous prime is 130631027. The next prime is 130631047. The reversal of 130631038 is 830136031.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32657758 + ... + 32657761.
It is an arithmetic number, because the mean of its divisors is an integer number (48986640).
Almost surely, 2130631038 is an apocalyptic number.
130631038 is a deficient number, since it is larger than the sum of its proper divisors (65315522).
130631038 is an equidigital number, since it uses as much as digits as its factorization.
130631038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65315521.
The product of its (nonzero) digits is 1296, while the sum is 25.
The square root of 130631038 is about 11429.3935972124. The cubic root of 130631038 is about 507.3980485506.
Adding to 130631038 its reverse (830136031), we get a palindrome (960767069).
The spelling of 130631038 in words is "one hundred thirty million, six hundred thirty-one thousand, thirty-eight".
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