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2907120220 = 225145356011
BaseRepresentation
bin1010110101000111…
…0010001001011100
321111121021000020021
42231101302021130
521423210321340
61200245401524
7132020054104
oct25521621134
97447230207
102907120220
111261aa24a4
126917092a4
133743948a4
141d814a204
15120348e4a
hexad47225c

2907120220 has 12 divisors (see below), whose sum is σ = 6104952504. Its totient is φ = 1162848080.

The previous prime is 2907120217. The next prime is 2907120239. The reversal of 2907120220 is 220217092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72677986 + ... + 72678025.

It is an arithmetic number, because the mean of its divisors is an integer number (508746042).

Almost surely, 22907120220 is an apocalyptic number.

2907120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2907120220 is an abundant number, since it is smaller than the sum of its proper divisors (3197832284).

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

2907120220 is a wasteful number, since it uses less digits than its factorization.

2907120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145356020 (or 145356018 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2907120220 is about 53917.7171252641. The cubic root of 2907120220 is about 1427.2092899319.

The spelling of 2907120220 in words is "two billion, nine hundred seven million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 145356011 290712022 581424044 726780055 1453560110 2907120220