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2271628049 = 19130391757
BaseRepresentation
bin1000011101100110…
…0100101100010001
312212022110122212012
42013121210230101
514123014044144
61013224512305
7110202343205
oct20731445421
95768418765
102271628049
11a66302859
1253491b695
132a2820212
141779a4b05
15d4669e9e
hex87664b11

2271628049 has 8 divisors (see below), whose sum is σ = 2393048640. Its totient is φ = 2150393616.

The previous prime is 2271628033. The next prime is 2271628069. The reversal of 2271628049 is 9408261722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2271628049 - 24 = 2271628033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2271627997 and 2271628015.

It is not an unprimeable number, because it can be changed into a prime (2271628019) 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, 21122 + ... + 70635.

It is an arithmetic number, because the mean of its divisors is an integer number (299131080).

Almost surely, 22271628049 is an apocalyptic number.

It is an amenable number.

2271628049 is a deficient number, since it is larger than the sum of its proper divisors (121420591).

2271628049 is a wasteful number, since it uses less digits than its factorization.

2271628049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93079.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 2271628049 is about 47661.5993122346. The cubic root of 2271628049 is about 1314.5559467776. Note that the first 3 decimals are identical.

The spelling of 2271628049 in words is "two billion, two hundred seventy-one million, six hundred twenty-eight thousand, forty-nine".

Divisors: 1 19 1303 24757 91757 1743383 119559371 2271628049