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20039262085 = 534331167449
BaseRepresentation
bin10010101010011011…
…101101111110000101
31220201120101222201001
4102222123231332011
5312020022341320
613112250533301
71306406626423
oct225233557605
956646358631
1020039262085
118553706227
123a73137231
131b7487363b
14d815c6113
157c442420a
hex4aa6edf85

20039262085 has 8 divisors (see below), whose sum is σ = 24054139800. Its totient is φ = 16026726144.

The previous prime is 20039262053. The next prime is 20039262097. The reversal of 20039262085 is 58026293002.

It can be written as a sum of positive squares in 4 ways, for example, as 2403156484 + 17636105601 = 49022^2 + 132801^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20039262085 - 25 = 20039262053 is a prime.

It is a super-2 number, since 2×200392620852 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 566560 + ... + 600889.

It is an arithmetic number, because the mean of its divisors is an integer number (3006767475).

Almost surely, 220039262085 is an apocalyptic number.

It is an amenable number.

20039262085 is a deficient number, since it is larger than the sum of its proper divisors (4014877715).

20039262085 is a wasteful number, since it uses less digits than its factorization.

20039262085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170887.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 20039262085 in words is "twenty billion, thirty-nine million, two hundred sixty-two thousand, eighty-five".

Divisors: 1 5 3433 17165 1167449 5837245 4007852417 20039262085