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2210212020 = 223537995591
BaseRepresentation
bin1000001110111101…
…0010100010110100
312201000220101220110
42003233102202310
514011303241040
61003152303020
7105525330552
oct20357224264
95630811813
102210212020
11a34675005
12518241a70
13292b98883
1416d778bd2
15ce087980
hex83bd28b4

2210212020 has 48 divisors (see below), whose sum is σ = 6355859328. Its totient is φ = 573459840.

The previous prime is 2210211967. The next prime is 2210212033. The reversal of 2210212020 is 202120122.

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

It is a junction number, because it is equal to n+sod(n) for n = 2210211987 and 2210212005.

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, 495576 + ... + 500015.

It is an arithmetic number, because the mean of its divisors is an integer number (132413736).

Almost surely, 22210212020 is an apocalyptic number.

2210212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210212020 is an abundant number, since it is smaller than the sum of its proper divisors (4145647308).

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

2210212020 is a wasteful number, since it uses less digits than its factorization.

2210212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995640 (or 995638 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2210212020 is about 47012.8920616462. The cubic root of 2210212020 is about 1302.6007147755.

Adding to 2210212020 its reverse (202120122), we get a palindrome (2412332142).

The spelling of 2210212020 in words is "two billion, two hundred ten million, two hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 995591 1991182 2986773 3982364 4977955 5973546 9955910 11947092 14933865 19911820 29867730 36836867 59735460 73673734 110510601 147347468 184184335 221021202 368368670 442042404 552553005 736737340 1105106010 2210212020