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2092780220 = 225412552171
BaseRepresentation
bin111110010111101…
…0100101010111100
312101211221020202112
41330233110222330
513241222431340
6543355313152
7102601224026
oct17457245274
95354836675
102092780220
11984357833
124a4a4b7b8
132747608bb
1415bd2b016
15c3add065
hex7cbd4abc

2092780220 has 24 divisors (see below), whose sum is σ = 4502031408. Its totient is φ = 816694400.

The previous prime is 2092780159. The next prime is 2092780241. The reversal of 2092780220 is 220872902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275266 + ... + 1276905.

It is an arithmetic number, because the mean of its divisors is an integer number (187584642).

Almost surely, 22092780220 is an apocalyptic number.

2092780220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2092780220 is an abundant number, since it is smaller than the sum of its proper divisors (2409251188).

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

2092780220 is a wasteful number, since it uses less digits than its factorization.

2092780220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552221 (or 2552219 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2092780220 is about 45746.9148686554. The cubic root of 2092780220 is about 1279.1099403144.

The spelling of 2092780220 in words is "two billion, ninety-two million, seven hundred eighty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 2552171 5104342 10208684 12760855 25521710 51043420 104639011 209278022 418556044 523195055 1046390110 2092780220