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131321500757 = 1741332322699
BaseRepresentation
bin111101001001101011…
…1110001010001010101
3110112222000120102212022
41322103113301101111
54122421301011012
6140154523302525
712326161224146
oct1722327612125
9415860512768
10131321500757
1150769622217
122154b37aa45
13c4ca8ca045
1464dabc5acd
153638d9e472
hex1e935f1455

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".

Divisors: 1 1741 3323 22699 5785343 39518959 75428777 131321500757