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19419401970888 = 233948478531021
BaseRepresentation
bin1000110101001011011101…
…00011100110010011001000
32112202110212111211200200220
410122211232203212103020
510021131413401032023
6105145052231230040
74043001612140433
oct432455643462310
975673774750626
1019419401970888
1162077a4171427
12221773a518320
13aab31b17569a
144b1c92aaa81a
1523a2235053e3
hex11a96e8e64c8

19419401970888 has 32 divisors (see below), whose sum is σ = 48549022479360. Its totient is φ = 6473064983360.

The previous prime is 19419401970877. The next prime is 19419401970937. The reversal of 19419401970888 is 88807910491491.

It is a super-2 number, since 2×194194019708882 (a number of 27 digits) contains 22 as substring.

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, 1989183 + ... + 6541838.

It is an arithmetic number, because the mean of its divisors is an integer number (1517156952480).

Almost surely, 219419401970888 is an apocalyptic number.

It is an amenable number.

19419401970888 is an abundant number, since it is smaller than the sum of its proper divisors (29129620508472).

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

19419401970888 is a wasteful number, since it uses less digits than its factorization.

19419401970888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625877 (or 8625873 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 69.

The spelling of 19419401970888 in words is "nineteen trillion, four hundred nineteen billion, four hundred one million, nine hundred seventy thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 94847 189694 284541 379388 569082 758776 1138164 2276328 8531021 17062042 25593063 34124084 51186126 68248168 102372252 204744504 809141748787 1618283497574 2427425246361 3236566995148 4854850492722 6473133990296 9709700985444 19419401970888