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13122130221232 = 242930367931289
BaseRepresentation
bin1011111011110011101111…
…1010010001100010110000
31201110110111211001120221121
42332330323322101202300
53204443110314034412
643524120131032024
72523020422350334
oct276747372214260
951413454046847
1013122130221232
1141aa07846462a
12157b1a6a3b614
137425472b2206
143351862437c4
1517b50b674107
hexbef3be918b0

13122130221232 has 40 divisors (see below), whose sum is σ = 26301715689600. Its totient is φ = 6334606075392.

The previous prime is 13122130221209. The next prime is 13122130221337. The reversal of 13122130221232 is 23212203122131.

It is a junction number, because it is equal to n+sod(n) for n = 13122130221197 and 13122130221206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13624644 + ... + 14555932.

It is an arithmetic number, because the mean of its divisors is an integer number (657542892240).

Almost surely, 213122130221232 is an apocalyptic number.

It is an amenable number.

13122130221232 is an abundant number, since it is smaller than the sum of its proper divisors (13179585468368).

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

13122130221232 is a wasteful number, since it uses less digits than its factorization.

13122130221232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961693 (or 961687 counting only the distinct ones).

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

Adding to 13122130221232 its reverse (23212203122131), we get a palindrome (36334333343363).

The spelling of 13122130221232 in words is "thirteen trillion, one hundred twenty-two billion, one hundred thirty million, two hundred twenty-one thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 29 58 116 232 464 30367 60734 121468 242936 485872 880643 931289 1761286 1862578 3522572 3725156 7045144 7450312 14090288 14900624 27007381 54014762 108029524 216059048 432118096 28280453063 56560906126 113121812252 226243624504 452487249008 820133138827 1640266277654 3280532555308 6561065110616 13122130221232