Base | Representation |
---|---|
bin | 1111100100100… |
… | …10011010100110 |
3 | 100002210100021011 |
4 | 13302102122212 |
5 | 231414420032 |
6 | 20543412434 |
7 | 3144164326 |
oct | 762223246 |
9 | 302710234 |
10 | 130623142 |
11 | 67808111 |
12 | 378b411a |
13 | 210a6300 |
14 | 134c3286 |
15 | b703247 |
hex | 7c926a6 |
130623142 has 24 divisors (see below), whose sum is σ = 213240384. Its totient is φ = 59982624.
The previous prime is 130623127. The next prime is 130623149. The reversal of 130623142 is 241326031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130623149) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74508 + ... + 76240.
It is an arithmetic number, because the mean of its divisors is an integer number (8885016).
Almost surely, 2130623142 is an apocalyptic number.
130623142 is a deficient number, since it is larger than the sum of its proper divisors (82617242).
130623142 is a wasteful number, since it uses less digits than its factorization.
130623142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1984 (or 1971 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 22.
The square root of 130623142 is about 11429.0481668422. The cubic root of 130623142 is about 507.3878251107.
Adding to 130623142 its reverse (241326031), we get a palindrome (371949173).
The spelling of 130623142 in words is "one hundred thirty million, six hundred twenty-three thousand, one hundred forty-two".
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