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2756248385 = 511311161137
BaseRepresentation
bin1010010001001001…
…0000001101000001
321010002100220222112
42210102100031001
521121044422020
61133255545105
7125205503402
oct24422201501
97102326875
102756248385
111194915230
1264b08b195
1334c04bc07
141c20b59a9
15111e962c5
hexa4490341

2756248385 has 16 divisors (see below), whose sum is σ = 3619804032. Its totient is φ = 1998086400.

The previous prime is 2756248373. The next prime is 2756248399. The reversal of 2756248385 is 5838426572.

It is not a de Polignac number, because 2756248385 - 224 = 2739471169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63464 + ... + 97673.

It is an arithmetic number, because the mean of its divisors is an integer number (226237752).

Almost surely, 22756248385 is an apocalyptic number.

It is an amenable number.

2756248385 is a deficient number, since it is larger than the sum of its proper divisors (863555647).

2756248385 is a wasteful number, since it uses less digits than its factorization.

2756248385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161464.

The product of its digits is 3225600, while the sum is 50.

The square root of 2756248385 is about 52499.9846190454. The cubic root of 2756248385 is about 1402.0799669556.

The spelling of 2756248385 in words is "two billion, seven hundred fifty-six million, two hundred forty-eight thousand, three hundred eighty-five".

Divisors: 1 5 11 55 311 1555 3421 17105 161137 805685 1772507 8862535 50113607 250568035 551249677 2756248385