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12305553423 = 343181719733
BaseRepresentation
bin10110111010111011…
…11101100000001111
31011202121001212211220
423131131331200033
5200200210202143
65353022414423
7613641323022
oct133535754017
934677055756
1012305553423
115245189469
122475131413
131211558277
1484a4391b9
154c04c9d83
hex2dd77d80f

12305553423 has 32 divisors (see below), whose sum is σ = 16928271360. Its totient is φ = 7946709120.

The previous prime is 12305553419. The next prime is 12305553473. The reversal of 12305553423 is 32435550321.

It is not a de Polignac number, because 12305553423 - 22 = 12305553419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305553473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16787565 + ... + 16788297.

It is an arithmetic number, because the mean of its divisors is an integer number (529008480).

Almost surely, 212305553423 is an apocalyptic number.

12305553423 is a deficient number, since it is larger than the sum of its proper divisors (4622717937).

12305553423 is a wasteful number, since it uses less digits than its factorization.

12305553423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 12305553423 in words is "twelve billion, three hundred five million, five hundred fifty-three thousand, four hundred twenty-three".

Divisors: 1 3 43 129 181 543 719 733 2157 2199 7783 23349 30917 31519 92751 94557 130139 132673 390417 398019 527027 1581081 5595977 5704939 16787931 17114817 22662161 67986483 95391887 286175661 4101851141 12305553423