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2022221320 = 23577222219
BaseRepresentation
bin111100010001000…
…1010011000001000
312012221011111010221
41320202022120020
513120142040240
6532355115424
7101053411660
oct17042123010
95187144127
102022221320
11948544899
124852a2b74
13262c57882
141528011a0
15bc801a4a
hex7888a608

2022221320 has 32 divisors (see below), whose sum is σ = 5199998400. Its totient is φ = 693332928.

The previous prime is 2022221297. The next prime is 2022221321. The reversal of 2022221320 is 231222202.

It is a junction number, because it is equal to n+sod(n) for n = 2022221294 and 2022221303.

It is not an unprimeable number, because it can be changed into a prime (2022221321) 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 7 ways as a sum of consecutive naturals, for example, 3610830 + ... + 3611389.

It is an arithmetic number, because the mean of its divisors is an integer number (162499950).

Almost surely, 22022221320 is an apocalyptic number.

2022221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022221320 is an abundant number, since it is smaller than the sum of its proper divisors (3177777080).

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

2022221320 is a wasteful number, since it uses less digits than its factorization.

2022221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222237 (or 7222233 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2022221320 is about 44969.1151791983. The cubic root of 2022221320 is about 1264.5700591223.

Adding to 2022221320 its reverse (231222202), we get a palindrome (2253443522).

The spelling of 2022221320 in words is "two billion, twenty-two million, two hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 7222219 14444438 28888876 36111095 50555533 57777752 72222190 101111066 144444380 202222132 252777665 288888760 404444264 505555330 1011110660 2022221320