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2020620 = 2235717283
BaseRepresentation
bin111101101010100001100
310210122202210
413231110030
51004124440
6111150420
723114010
oct7552414
93718683
102020620
111160138
12815410
13559944
143a8540
1529da80
hex1ed50c

2020620 has 96 divisors (see below), whose sum is σ = 6870528. Its totient is φ = 433152.

The previous prime is 2020609. The next prime is 2020621. The reversal of 2020620 is 260202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2020596 and 2020605.

It is not an unprimeable number, because it can be changed into a prime (2020621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6999 + ... + 7281.

It is an arithmetic number, because the mean of its divisors is an integer number (71568).

22020620 is an apocalyptic number.

2020620 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 2020620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3435264).

2020620 is an abundant number, since it is smaller than the sum of its proper divisors (4849908).

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

2020620 is a wasteful number, since it uses less digits than its factorization.

2020620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2020620 is about 1421.4851388601. The cubic root of 2020620 is about 126.4236182699.

Adding to 2020620 its reverse (260202), we get a palindrome (2280822).

The spelling of 2020620 in words is "two million, twenty thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 255 283 340 357 420 476 510 566 595 714 849 1020 1132 1190 1415 1428 1698 1785 1981 2380 2830 3396 3570 3962 4245 4811 5660 5943 7140 7924 8490 9622 9905 11886 14433 16980 19244 19810 23772 24055 28866 29715 33677 39620 48110 57732 59430 67354 72165 96220 101031 118860 134708 144330 168385 202062 288660 336770 404124 505155 673540 1010310 2020620