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2784272053 = 17163780709
BaseRepresentation
bin1010010111110100…
…1001111010110101
321012001002200020011
42211331021322311
521200233201203
61140140340221
7125665631143
oct24575117265
97161080204
102784272053
1111a9715892
12658544671
13354ab1474
141c5acc593
1511467e76d
hexa5f49eb5

2784272053 has 4 divisors (see below), whose sum is σ = 2948052780. Its totient is φ = 2620491328.

The previous prime is 2784272041. The next prime is 2784272063. The reversal of 2784272053 is 3502724872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1705937809 + 1078334244 = 41303^2 + 32838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2784272053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2784271997 and 2784272015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2784272063) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 81890338 + ... + 81890371.

It is an arithmetic number, because the mean of its divisors is an integer number (737013195).

Almost surely, 22784272053 is an apocalyptic number.

It is an amenable number.

2784272053 is a deficient number, since it is larger than the sum of its proper divisors (163780727).

2784272053 is a wasteful number, since it uses less digits than its factorization.

2784272053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163780726.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 2784272053 is about 52766.2018057013. The cubic root of 2784272053 is about 1406.8157529805.

The spelling of 2784272053 in words is "two billion, seven hundred eighty-four million, two hundred seventy-two thousand, fifty-three".

Divisors: 1 17 163780709 2784272053