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20688368098 = 215436703943
BaseRepresentation
bin10011010001000111…
…110111000111100010
31222101210210222202111
4103101013313013202
5314332210234343
613300515305534
71331451140656
oct232107670742
958353728674
1020688368098
118857054182
1240145ab2aa
131c491a3738
1410038b2a66
158113e1c9d
hex4d11f71e2

20688368098 has 8 divisors (see below), whose sum is σ = 31052668608. Its totient is φ = 10337478564.

The previous prime is 20688368089. The next prime is 20688368117. The reversal of 20688368098 is 89086388602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348886 + ... + 3355057.

It is an arithmetic number, because the mean of its divisors is an integer number (3881583576).

Almost surely, 220688368098 is an apocalyptic number.

20688368098 is a deficient number, since it is larger than the sum of its proper divisors (10364300510).

20688368098 is a wasteful number, since it uses less digits than its factorization.

20688368098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705488.

The product of its (nonzero) digits is 7962624, while the sum is 58.

The spelling of 20688368098 in words is "twenty billion, six hundred eighty-eight million, three hundred sixty-eight thousand, ninety-eight".

Divisors: 1 2 1543 3086 6703943 13407886 10344184049 20688368098