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20087303685 = 359722361909
BaseRepresentation
bin10010101101010010…
…111110111000000101
31220211220210202101120
4102231102332320011
5312114322204220
613121124344153
71310532156411
oct225522767005
956756722346
1020087303685
118578839629
123a87245059
131b817c4517
14d87b2dd41
157c8763a40
hex4ad4bee05

20087303685 has 32 divisors (see below), whose sum is σ = 32617159680. Its totient is φ = 10555066368.

The previous prime is 20087303641. The next prime is 20087303699. The reversal of 20087303685 is 58630378002.

It is not a de Polignac number, because 20087303685 - 219 = 20086779397 is a prime.

It is a Curzon number.

It is a congruent number.

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, 293511 + ... + 355419.

It is an arithmetic number, because the mean of its divisors is an integer number (1019286240).

Almost surely, 220087303685 is an apocalyptic number.

It is an amenable number.

20087303685 is a deficient number, since it is larger than the sum of its proper divisors (12529855995).

20087303685 is a wasteful number, since it uses less digits than its factorization.

20087303685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62237.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 20087303685 in words is "twenty billion, eighty-seven million, three hundred three thousand, six hundred eighty-five".

Divisors: 1 3 5 15 97 223 291 485 669 1115 1455 3345 21631 61909 64893 108155 185727 309545 324465 928635 6005173 13805707 18015519 30025865 41417121 69028535 90077595 207085605 1339153579 4017460737 6695767895 20087303685