Search a number
-
+
131322430533 = 3742457147289
BaseRepresentation
bin111101001001101101…
…1010100010001000101
3110112222002022200021110
41322103123110101011
54122422020234113
6140154555235233
712326202145650
oct1722333242105
9415862280243
10131322430533
115076a0a7828
122154b748b19
13c4cab642c8
1464dad88897
153638ed4bc3
hex1e936d4445

131322430533 has 16 divisors (see below), whose sum is σ = 200116442240. Its totient is φ = 75039111936.

The previous prime is 131322430507. The next prime is 131322430579. The reversal of 131322430533 is 335034223131.

It is not a de Polignac number, because 131322430533 - 29 = 131322430021 is a prime.

It is a super-2 number, since 2×1313224305332 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131322430533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322430333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817953 + ... + 965241.

It is an arithmetic number, because the mean of its divisors is an integer number (12507277640).

Almost surely, 2131322430533 is an apocalyptic number.

It is an amenable number.

131322430533 is a deficient number, since it is larger than the sum of its proper divisors (68794011707).

131322430533 is a wasteful number, since it uses less digits than its factorization.

131322430533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189756.

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 131322430533 its reverse (335034223131), we get a palindrome (466356653664).

The spelling of 131322430533 in words is "one hundred thirty-one billion, three hundred twenty-two million, four hundred thirty thousand, five hundred thirty-three".

Divisors: 1 3 7 21 42457 127371 147289 297199 441867 891597 1031023 3093069 6253449073 18760347219 43774143511 131322430533