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2020013320 = 2351331125311
BaseRepresentation
bin111100001100110…
…1111010100001000
312012210000022100011
41320121233110020
513114110411240
6532235521304
7101025554443
oct17031572410
95183008304
102020013320
119472769a6
124845b9234
13262663870
141523c865a
15bc5176ea
hex7866f508

2020013320 has 64 divisors (see below), whose sum is σ = 5052579840. Its totient is φ = 721785600.

The previous prime is 2020013311. The next prime is 2020013363. The reversal of 2020013320 is 233100202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2020013320.

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, 46536 + ... + 78775.

It is an arithmetic number, because the mean of its divisors is an integer number (78946560).

Almost surely, 22020013320 is an apocalyptic number.

2020013320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020013320 is an abundant number, since it is smaller than the sum of its proper divisors (3032566520).

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

2020013320 is a wasteful number, since it uses less digits than its factorization.

2020013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125366 (or 125362 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2020013320 is about 44944.5582912993. The cubic root of 2020013320 is about 1264.1096433891.

Adding to 2020013320 its reverse (233100202), we get a palindrome (2253113522).

The spelling of 2020013320 in words is "two billion, twenty million, thirteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 31 40 52 62 65 104 124 130 155 248 260 310 403 520 620 806 1240 1612 2015 3224 4030 8060 16120 125311 250622 501244 626555 1002488 1253110 1629043 2506220 3258086 3884641 5012440 6516172 7769282 8145215 13032344 15538564 16290430 19423205 31077128 32580860 38846410 50500333 65161720 77692820 101000666 155385640 202001332 252501665 404002664 505003330 1010006660 2020013320