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13113213143212 = 2271372227498779
BaseRepresentation
bin1011111011010010100001…
…1010010100100010101100
31201102121111101000002111201
42332310220122110202230
53204321330031040322
643520043231055244
72522253434422330
oct276645032244254
951377441002451
1013113213143212
1141a6311a5a966
121579518671524
13741755a762a0
1433497bc557c0
1517b1888c6d27
hexbed286948ac

13113213143212 has 48 divisors (see below), whose sum is σ = 28244291362560. Its totient is φ = 5187562535232.

The previous prime is 13113213143201. The next prime is 13113213143291. The reversal of 13113213143212 is 21234131231131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26041239 + ... + 26540017.

It is an arithmetic number, because the mean of its divisors is an integer number (588422736720).

Almost surely, 213113213143212 is an apocalyptic number.

It is an amenable number.

13113213143212 is an abundant number, since it is smaller than the sum of its proper divisors (15131078219348).

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

13113213143212 is a wasteful number, since it uses less digits than its factorization.

13113213143212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571030 (or 571028 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

Adding to 13113213143212 its reverse (21234131231131), we get a palindrome (34347344374343).

The spelling of 13113213143212 in words is "thirteen trillion, one hundred thirteen billion, two hundred thirteen million, one hundred forty-three thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 72227 144454 288908 498779 505589 938951 997558 1011178 1877902 1995116 2022356 3491453 3755804 6484127 6572657 6982906 12968254 13145314 13965812 25936508 26290628 45388889 90777778 181555556 36025310833 72050621666 144101243332 252177175831 468329040829 504354351662 936658081658 1008708703324 1873316163316 3278303285803 6556606571606 13113213143212