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20212013020 = 2253136179013
BaseRepresentation
bin10010110100101110…
…101101011111011100
31221011121110122102211
4102310232231133130
5312343233404040
613141341330204
71313605163443
oct226456553734
957147418384
1020212013020
1186321775a1
123b00b66964
131ba15a9b24
14d9a513d5a
157d46998ea
hex4b4bad7dc

20212013020 has 48 divisors (see below), whose sum is σ = 43831404288. Its totient is φ = 7820974080.

The previous prime is 20212012999. The next prime is 20212013033. The reversal of 20212013020 is 2031021202.

It is a congruent number.

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, 2238034 + ... + 2247046.

It is an arithmetic number, because the mean of its divisors is an integer number (913154256).

Almost surely, 220212013020 is an apocalyptic number.

20212013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212013020 is an abundant number, since it is smaller than the sum of its proper divisors (23619391268).

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

20212013020 is a wasteful number, since it uses less digits than its factorization.

20212013020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12670 (or 12668 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20212013020 its reverse (2031021202), we get a palindrome (22243034222).

The spelling of 20212013020 in words is "twenty billion, two hundred twelve million, thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 3617 7234 9013 14468 18026 18085 36052 36170 45065 72340 90130 112127 180260 224254 279403 448508 558806 560635 1117612 1121270 1397015 2242540 2794030 5588060 32600021 65200042 130400084 163000105 326000210 652000420 1010600651 2021201302 4042402604 5053003255 10106006510 20212013020