Base | Representation |
---|---|
bin | 111101000000000110… |
… | …1011111110101111110 |
3 | 110112010121200120202002 |
4 | 1322000031133311332 |
5 | 4121242002301310 |
6 | 140103001302302 |
7 | 12315205655201 |
oct | 1720015376576 |
9 | 415117616662 |
10 | 131000040830 |
11 | 5061412065a |
12 | 2147b794992 |
13 | c479127479 |
14 | 64aa227938 |
15 | 361aa51da5 |
hex | 1e8035fd7e |
131000040830 has 32 divisors (see below), whose sum is σ = 239872709664. Its totient is φ = 51498602496.
The previous prime is 131000040803. The next prime is 131000040841. The reversal of 131000040830 is 38040000131.
It is a happy number.
It is a super-2 number, since 2×1310000408302 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64334 + ... + 515886.
It is an arithmetic number, because the mean of its divisors is an integer number (7496022177).
Almost surely, 2131000040830 is an apocalyptic number.
131000040830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131000040830 is a deficient number, since it is larger than the sum of its proper divisors (108872668834).
131000040830 is a wasteful number, since it uses less digits than its factorization.
131000040830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 452060.
The product of its (nonzero) digits is 288, while the sum is 20.
Adding to 131000040830 its reverse (38040000131), we get a palindrome (169040040961).
The spelling of 131000040830 in words is "one hundred thirty-one billion, forty thousand, eight hundred thirty".
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