Base | Representation |
---|---|
bin | 1111100011101… |
… | …11011010011110 |
3 | 100002120201112212 |
4 | 13301313122132 |
5 | 231402400132 |
6 | 20541200422 |
7 | 3143224016 |
oct | 761673236 |
9 | 302521485 |
10 | 130512542 |
11 | 67742006 |
12 | 37860112 |
13 | 21067b74 |
14 | 13494c46 |
15 | b6d05b2 |
hex | 7c7769e |
130512542 has 16 divisors (see below), whose sum is σ = 207549312. Its totient is φ = 61443360.
The previous prime is 130512533. The next prime is 130512563. The reversal of 130512542 is 245215031.
130512542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent 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, 26153 + ... + 30740.
It is an arithmetic number, because the mean of its divisors is an integer number (12971832).
Almost surely, 2130512542 is an apocalyptic number.
130512542 is a deficient number, since it is larger than the sum of its proper divisors (77036770).
130512542 is a wasteful number, since it uses less digits than its factorization.
130512542 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56963.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 130512542 is about 11424.2085940340. The cubic root of 130512542 is about 507.2445811230.
Adding to 130512542 its reverse (245215031), we get a palindrome (375727573).
The spelling of 130512542 in words is "one hundred thirty million, five hundred twelve thousand, five hundred forty-two".
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