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2022220242 = 2357594421
BaseRepresentation
bin111100010001000…
…1010000111010010
312012221011102200000
41320202022013102
513120142021432
6532355110430
7101053405560
oct17042120722
95187142600
102022220242
11948543aa9
124852a2416
13262c57233
14152800a30
15bc80157c
hex7888a1d2

2022220242 has 48 divisors (see below), whose sum is σ = 5192870592. Its totient is φ = 577776240.

The previous prime is 2022220229. The next prime is 2022220243. The reversal of 2022220242 is 2420222202.

It is a happy number.

2022220242 is a `hidden beast` number, since 202 + 2 + 220 + 242 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (2022220243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293809 + ... + 300612.

It is an arithmetic number, because the mean of its divisors is an integer number (108184804).

Almost surely, 22022220242 is an apocalyptic number.

2022220242 is an abundant number, since it is smaller than the sum of its proper divisors (3170650350).

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

2022220242 is an equidigital number, since it uses as much as digits as its factorization.

2022220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594445 (or 594433 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2022220242 is about 44969.1031931925. The cubic root of 2022220242 is about 1264.5698344178.

Adding to 2022220242 its reverse (2420222202), we get a palindrome (4442442444).

The spelling of 2022220242 in words is "two billion, twenty-two million, two hundred twenty thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 243 378 486 567 1134 1701 3402 594421 1188842 1783263 3566526 4160947 5349789 8321894 10699578 12482841 16049367 24965682 32098734 37448523 48148101 74897046 96296202 112345569 144444303 224691138 288888606 337036707 674073414 1011110121 2022220242