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2020621230 = 2325314491613
BaseRepresentation
bin111100001110000…
…0011101110101110
312012211011012020100
41320130003232232
513114234334410
6532300531530
7101033665665
oct17034035656
95184135210
102020621230
11947651701
12484850ba6
13262817484
14152505ddc
15bc5d78c0
hex78703bae

2020621230 has 96 divisors (see below), whose sum is σ = 5438534400. Its totient is φ = 519966720.

The previous prime is 2020621217. The next prime is 2020621247. The reversal of 2020621230 is 321260202.

2020621230 is a `hidden beast` number, since 2 + 0 + 20 + 621 + 23 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1251904 + ... + 1253516.

It is an arithmetic number, because the mean of its divisors is an integer number (56651400).

Almost surely, 22020621230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020621230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2719267200).

2020621230 is an abundant number, since it is smaller than the sum of its proper divisors (3417913170).

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

2020621230 is a wasteful number, since it uses less digits than its factorization.

2020621230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2020621230 is about 44951.3206702539. The cubic root of 2020621230 is about 1264.2364392226.

Adding to 2020621230 its reverse (321260202), we get a palindrome (2341881432).

The spelling of 2020621230 in words is "two billion, twenty million, six hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 449 465 558 898 930 1347 1395 1613 2245 2694 2790 3226 4041 4490 4839 6735 8065 8082 9678 13470 13919 14517 16130 20205 24195 27838 29034 40410 41757 48390 50003 69595 72585 83514 100006 125271 139190 145170 150009 208785 250015 250542 300018 417570 450027 500030 626355 724237 750045 900054 1252710 1448474 1500090 2172711 2250135 3621185 4345422 4500270 6518133 7242370 10863555 13036266 21727110 22451347 32590665 44902694 65181330 67354041 112256735 134708082 202062123 224513470 336770205 404124246 673540410 1010310615 2020621230