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2085284420 = 225237362099
BaseRepresentation
bin111110001001010…
…1110101001000100
312101022211102110022
41330102232221010
513232313100140
6542530514312
7102450424262
oct17422565104
95338742408
102085284420
119800a805a
124a2435998
13273037b0b
1415ad39432
15c310c0b5
hex7c4aea44

2085284420 has 48 divisors (see below), whose sum is σ = 4632163200. Its totient is φ = 786905856.

The previous prime is 2085284419. The next prime is 2085284431. The reversal of 2085284420 is 244825802.

It is a super-2 number, since 2×20852844202 = 8696822224589472800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2531 + ... + 64629.

It is an arithmetic number, because the mean of its divisors is an integer number (96503400).

Almost surely, 22085284420 is an apocalyptic number.

2085284420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2085284420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2316081600).

2085284420 is an abundant number, since it is smaller than the sum of its proper divisors (2546878780).

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

2085284420 is a wasteful number, since it uses less digits than its factorization.

2085284420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62204 (or 62202 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 2085284420 is about 45664.9145405967. The cubic root of 2085284420 is about 1277.5809658869.

The spelling of 2085284420 in words is "two billion, eighty-five million, two hundred eighty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 73 92 115 146 230 292 365 460 730 1460 1679 3358 6716 8395 16790 33580 62099 124198 248396 310495 620990 1241980 1428277 2856554 4533227 5713108 7141385 9066454 14282770 18132908 22666135 28565540 45332270 90664540 104264221 208528442 417056884 521321105 1042642210 2085284420