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2022020020 = 225694914549
BaseRepresentation
bin111100010000101…
…1001001110110100
312012220210021000101
41320201121032310
513120114120040
6532350523444
7101051613046
oct17041311664
95186707011
102022020020
11948417629
12485206584
13262bb7067
1415278ba96
15bc7b209a
hex788593b4

2022020020 has 24 divisors (see below), whose sum is σ = 4247145000. Its totient is φ = 808636032.

The previous prime is 2022019991. The next prime is 2022020027. The reversal of 2022020020 is 200202202.

It can be written as a sum of positive squares in 4 ways, for example, as 874030096 + 1147989924 = 29564^2 + 33882^2 .

It is a super-2 number, since 2×20220200202 = 8177129922561600800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2022019979 and 2022020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022020027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131706 + ... + 146254.

It is an arithmetic number, because the mean of its divisors is an integer number (176964375).

Almost surely, 22022020020 is an apocalyptic number.

2022020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022020020 is an abundant number, since it is smaller than the sum of its proper divisors (2225124980).

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

2022020020 is a wasteful number, since it uses less digits than its factorization.

2022020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21507 (or 21505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2022020020 is about 44966.8769206846. The cubic root of 2022020020 is about 1264.5280976091.

Adding to 2022020020 its reverse (200202202), we get a palindrome (2222222222).

The spelling of 2022020020 in words is "two billion, twenty-two million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 6949 13898 14549 27796 29098 34745 58196 69490 72745 138980 145490 290980 101101001 202202002 404404004 505505005 1011010010 2022020020