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20710971488160 = 2533517282012139
BaseRepresentation
bin1001011010110001001100…
…00110010011011110100000
32201022221122012202020202000
410231120212012103132200
510203312032200110120
6112014253340324000
74235214115661232
oct455304606233640
981287565666660
1020710971488160
116665523520118
1223a5b12543600
13b730617a47b5
145185b8730252
1525db17249990
hex12d6261937a0

20710971488160 has 192 divisors, whose sum is σ = 76752424022400. Its totient is φ = 5198047727616.

The previous prime is 20710971488113. The next prime is 20710971488171. The reversal of 20710971488160 is 6188417901702.

20710971488160 is a `hidden beast` number, since 2 + 0 + 7 + 10 + 97 + 1 + 488 + 1 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 20710971488097 and 20710971488106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140932630 + ... + 141079509.

It is an arithmetic number, because the mean of its divisors is an integer number (399752208450).

Almost surely, 220710971488160 is an apocalyptic number.

20710971488160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20710971488160 is an abundant number, since it is smaller than the sum of its proper divisors (56041452534240).

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

20710971488160 is a wasteful number, since it uses less digits than its factorization.

20710971488160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282012180 (or 282012166 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 20710971488160 in words is "twenty trillion, seven hundred ten billion, nine hundred seventy-one million, four hundred eighty-eight thousand, one hundred sixty".