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2022020680 = 23561828697
BaseRepresentation
bin111100010000101…
…1001011001001000
312012220210021220211
41320201121121020
513120114130210
6532350530504
7101051615011
oct17041313110
95186707824
102022020680
11948418079
12485206a34
13262bb7454
1415278c008
15bc7b238a
hex78859648

2022020680 has 32 divisors (see below), whose sum is σ = 4624134840. Its totient is φ = 795548160.

The previous prime is 2022020669. The next prime is 2022020729. The reversal of 2022020680 is 860202202.

It can be written as a sum of positive squares in 4 ways, for example, as 715776516 + 1306244164 = 26754^2 + 36142^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 411909 + ... + 416788.

Almost surely, 22022020680 is an apocalyptic number.

2022020680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022020680 is an abundant number, since it is smaller than the sum of its proper divisors (2602114160).

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

2022020680 is a wasteful number, since it uses less digits than its factorization.

2022020680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828769 (or 828765 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2022020680 is about 44966.8842594192. The cubic root of 2022020680 is about 1264.5282351924.

Adding to 2022020680 its reverse (860202202), we get a palindrome (2882222882).

The spelling of 2022020680 in words is "two billion, twenty-two million, twenty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 828697 1657394 3314788 4143485 6629576 8286970 16573940 33147880 50550517 101101034 202202068 252752585 404404136 505505170 1011010340 2022020680