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20087884232290 = 257286969774747
BaseRepresentation
bin1001001000101000100110…
…01101000011011001100010
32122010101100012011002010001
410210110103031003121202
510113104441330413130
6110420125134130214
74142205332460310
oct444242315033142
978111305132101
1020087884232290
116445250a60576
1223051bb95096a
13b29382987254
144d638a1670b0
1524c7ea5d36ca
hex124513343662

20087884232290 has 16 divisors (see below), whose sum is σ = 41323647563712. Its totient is φ = 6887274593904.

The previous prime is 20087884232263. The next prime is 20087884232293. The reversal of 20087884232290 is 9223248878002.

It is not an unprimeable number, because it can be changed into a prime (20087884232293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143484887304 + ... + 143484887443.

It is an arithmetic number, because the mean of its divisors is an integer number (2582727972732).

Almost surely, 220087884232290 is an apocalyptic number.

20087884232290 is an abundant number, since it is smaller than the sum of its proper divisors (21235763331422).

20087884232290 is a wasteful number, since it uses less digits than its factorization.

20087884232290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286969774761.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 20087884232290 in words is "twenty trillion, eighty-seven billion, eight hundred eighty-four million, two hundred thirty-two thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 286969774747 573939549494 1434848873735 2008788423229 2869697747470 4017576846458 10043942116145 20087884232290