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120443311312 = 24191797722039
BaseRepresentation
bin111000000101011111…
…0110001010011010000
3102111212220100011021221
41300022332301103100
53433131441430222
6131155250054424
711462461153132
oct1601276612320
9374786304257
10120443311312
1147097122505
121b41427a414
13b485cb175c
145b88183052
1531edd720c7
hex1c0afb14d0

120443311312 has 40 divisors (see below), whose sum is σ = 245665774400. Its totient is φ = 57046332672.

The previous prime is 120443311309. The next prime is 120443311411. The reversal of 120443311312 is 213113344021.

It is a super-2 number, since 2×1204433113122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5453989 + ... + 5476027.

It is an arithmetic number, because the mean of its divisors is an integer number (6141644360).

Almost surely, 2120443311312 is an apocalyptic number.

It is an amenable number.

120443311312 is an abundant number, since it is smaller than the sum of its proper divisors (125222463088).

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

120443311312 is a wasteful number, since it uses less digits than its factorization.

120443311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40043 (or 40037 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 120443311312 its reverse (213113344021), we get a palindrome (333556655333).

The spelling of 120443311312 in words is "one hundred twenty billion, four hundred forty-three million, three hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 16 19 38 76 152 304 17977 22039 35954 44078 71908 88156 143816 176312 287632 341563 352624 418741 683126 837482 1366252 1674964 2732504 3349928 5465008 6699856 396195103 792390206 1584780412 3169560824 6339121648 7527706957 15055413914 30110827828 60221655656 120443311312