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2156051727 = 32475097049
BaseRepresentation
bin1000000010000010…
…1011110100001111
312120020222202221200
42000200223310033
513403422123402
6553535400543
7104300065044
oct20040536417
95506882850
102156051727
11a07042635
12502083153
132848b496b
141664bb1cb
15c943a21c
hex8082bd0f

2156051727 has 12 divisors (see below), whose sum is σ = 3180559200. Its totient is φ = 1406785248.

The previous prime is 2156051701. The next prime is 2156051749. The reversal of 2156051727 is 7271506512.

2156051727 is a `hidden beast` number, since 2 + 15 + 605 + 17 + 27 = 666.

It is not a de Polignac number, because 2156051727 - 210 = 2156050703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2156051691 and 2156051700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156050727) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2548102 + ... + 2548947.

It is an arithmetic number, because the mean of its divisors is an integer number (265046600).

Almost surely, 22156051727 is an apocalyptic number.

2156051727 is a deficient number, since it is larger than the sum of its proper divisors (1024507473).

2156051727 is a wasteful number, since it uses less digits than its factorization.

2156051727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097102 (or 5097099 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 2156051727 is about 46433.3040715390. The cubic root of 2156051727 is about 1291.8727136039.

The spelling of 2156051727 in words is "two billion, one hundred fifty-six million, fifty-one thousand, seven hundred twenty-seven".

Divisors: 1 3 9 47 141 423 5097049 15291147 45873441 239561303 718683909 2156051727