Base | Representation |
---|---|
bin | 111101000001000001… |
… | …1101101111100000000 |
3 | 110112012210000002000121 |
4 | 1322002003231330000 |
5 | 4121322421002202 |
6 | 140110025430024 |
7 | 12316033251151 |
oct | 1720203557400 |
9 | 415183002017 |
10 | 131031031552 |
11 | 5062a668423 |
12 | 2148a03b314 |
13 | c482688385 |
14 | 64b03b3928 |
15 | 361d624537 |
hex | 1e820edf00 |
131031031552 has 72 divisors (see below), whose sum is σ = 262632333600. Its totient is φ = 65245151232.
The previous prime is 131031031543. The next prime is 131031031559. The reversal of 131031031552 is 255130130131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131031031559) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84047349 + ... + 84048907.
It is an arithmetic number, because the mean of its divisors is an integer number (3647671300).
Almost surely, 2131031031552 is an apocalyptic number.
It is an amenable number.
131031031552 is an abundant number, since it is smaller than the sum of its proper divisors (131601302048).
131031031552 is an equidigital number, since it uses as much as digits as its factorization.
131031031552 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2721 (or 2707 counting only the distinct ones).
The product of its (nonzero) digits is 1350, while the sum is 25.
Adding to 131031031552 its reverse (255130130131), we get a palindrome (386161161683).
The spelling of 131031031552 in words is "one hundred thirty-one billion, thirty-one million, thirty-one thousand, five hundred fifty-two".
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