Base | Representation |
---|---|
bin | 111101001001101011… |
… | …1110001010001010101 |
3 | 110112222000120102212022 |
4 | 1322103113301101111 |
5 | 4122421301011012 |
6 | 140154523302525 |
7 | 12326161224146 |
oct | 1722327612125 |
9 | 415860512768 |
10 | 131321500757 |
11 | 50769622217 |
12 | 2154b37aa45 |
13 | c4ca8ca045 |
14 | 64dabc5acd |
15 | 3638d9e472 |
hex | 1e935f1455 |
131321500757 has 8 divisors (see below), whose sum is σ = 131442261600. Its totient is φ = 131200795440.
The previous prime is 131321500697. The next prime is 131321500801. The reversal of 131321500757 is 757005123131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131321500757 - 214 = 131321484373 is a prime.
It is a super-2 number, since 2×1313215007572 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131321500357) 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, 5773994 + ... + 5796692.
It is an arithmetic number, because the mean of its divisors is an integer number (16430282700).
Almost surely, 2131321500757 is an apocalyptic number.
It is an amenable number.
131321500757 is a deficient number, since it is larger than the sum of its proper divisors (120760843).
131321500757 is a wasteful number, since it uses less digits than its factorization.
131321500757 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27763.
The product of its (nonzero) digits is 22050, while the sum is 35.
Adding to 131321500757 its reverse (757005123131), we get a palindrome (888326623888).
The spelling of 131321500757 in words is "one hundred thirty-one billion, three hundred twenty-one million, five hundred thousand, seven hundred fifty-seven".
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