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131244013141344 = 25322319813407781
BaseRepresentation
bin11101110101110110100000…
…110010000011110101100000
3122012200210201221012122020100
4131311312200302003311200
5114200300214331010334
61143044400044542400
736434031665014035
oct3565664062036540
9565623657178210
10131244013141344
11389003009918a4
1212877b76551a00
13583034649549c
14245a35bc6938c
151028e58239c99
hex775da0c83d60

131244013141344 has 72 divisors (see below), whose sum is σ = 389452343362992. Its totient is φ = 41845917231360.

The previous prime is 131244013141337. The next prime is 131244013141391. The reversal of 131244013141344 is 443141310442131.

131244013141344 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 440 + 131 + 41 + 3 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 131244013141299 and 131244013141308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9906697267 + ... + 9906710514.

It is an arithmetic number, because the mean of its divisors is an integer number (5409060324486).

Almost surely, 2131244013141344 is an apocalyptic number.

It is an amenable number.

131244013141344 is an abundant number, since it is smaller than the sum of its proper divisors (258208330221648).

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

131244013141344 is a wasteful number, since it uses less digits than its factorization.

131244013141344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19813407820 (or 19813407809 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 131244013141344 its reverse (443141310442131), we get a palindrome (574385323583475).

The spelling of 131244013141344 in words is "one hundred thirty-one trillion, two hundred forty-four billion, thirteen million, one hundred forty-one thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 23 24 32 36 46 48 69 72 92 96 138 144 184 207 276 288 368 414 552 736 828 1104 1656 2208 3312 6624 19813407781 39626815562 59440223343 79253631124 118880446686 158507262248 178320670029 237760893372 317014524496 356641340058 455708378963 475521786744 634029048992 713282680116 911416757926 951043573488 1367125136889 1426565360232 1822833515852 1902087146976 2734250273778 2853130720464 3645667031704 4101375410667 5468500547556 5706261440928 7291334063408 8202750821334 10937001095112 14582668126816 16405501642668 21874002190224 32811003285336 43748004380448 65622006570672 131244013141344