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19357984115712 = 21033111922914629
BaseRepresentation
bin1000110011011001000011…
…10001000100110000000000
32112112121100012022101022000
410121230201301010300000
510014130122413200322
6105100533553344000
74035365615033244
oct431544161046000
975477305271260
1019357984115712
11619374740a830
122207859868000
13aa55b0a57948
144acd07bb8424
1523882b5823ac
hex119b21c44c00

19357984115712 has 704 divisors, whose sum is σ = 66124322880000. Its totient is φ = 5532670033920.

The previous prime is 19357984115699. The next prime is 19357984115737. The reversal of 19357984115712 is 21751148975391.

19357984115712 is a `hidden beast` number, since 1 + 9 + 3 + 57 + 9 + 8 + 4 + 1 + 1 + 571 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (704).

It is a self number, because there is not a number n which added to its sum of digits gives 19357984115712.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1323253614 + ... + 1323268242.

It is an arithmetic number, because the mean of its divisors is an integer number (93926595000).

Almost surely, 219357984115712 is an apocalyptic number.

19357984115712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19357984115712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33062161440000).

19357984115712 is an abundant number, since it is smaller than the sum of its proper divisors (46766338764288).

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

19357984115712 is a wasteful number, since it uses less digits than its factorization.

19357984115712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14917 (or 14893 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 63.

The spelling of 19357984115712 in words is "nineteen trillion, three hundred fifty-seven billion, nine hundred eighty-four million, one hundred fifteen thousand, seven hundred twelve".