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131320652244 = 223192392409907
BaseRepresentation
bin111101001001101010…
…0100010000111010100
3110112221221222022220220
41322103110202013110
54122421041332434
6140154453154340
712326151061305
oct1722324420724
9415857868826
10131320652244
11507690a2771
122154b02b9b0
13c4ca690a72
1464daa447ac
153638c82d49
hex1e935221d4

131320652244 has 48 divisors (see below), whose sum is σ = 323891635200. Its totient is φ = 41296149216.

The previous prime is 131320652231. The next prime is 131320652249. The reversal of 131320652244 is 442256023131.

It is a super-2 number, since 2×1313206522442 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320652249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1150462 + ... + 1259445.

It is an arithmetic number, because the mean of its divisors is an integer number (6747742400).

Almost surely, 2131320652244 is an apocalyptic number.

It is an amenable number.

131320652244 is an abundant number, since it is smaller than the sum of its proper divisors (192570982956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131320652244 is a wasteful number, since it uses less digits than its factorization.

131320652244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410172 (or 2410170 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 131320652244 its reverse (442256023131), we get a palindrome (573576675375).

The spelling of 131320652244 in words is "one hundred thirty-one billion, three hundred twenty million, six hundred fifty-two thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 239 478 717 956 1434 2868 4541 9082 13623 18164 27246 54492 2409907 4819814 7229721 9639628 14459442 28918884 45788233 91576466 137364699 183152932 274729398 549458796 575967773 1151935546 1727903319 2303871092 3455806638 6911613276 10943387687 21886775374 32830163061 43773550748 65660326122 131320652244