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6540072286 = 2112910250897
BaseRepresentation
bin1100001011101000…
…11001010101011110
3121212210022002120111
412011310121111132
5101343224303121
63000544240234
7321032461066
oct60564312536
917783262514
106540072286
112856778120
12132631007a
13802c41577
144608363a6
152842692e1
hex185d1955e

6540072286 has 16 divisors (see below), whose sum is σ = 11070969840. Its totient is φ = 2870250880.

The previous prime is 6540072283. The next prime is 6540072293. The reversal of 6540072286 is 6822700456.

It is a super-2 number, since 2×65400722862 = 85545091012210531592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6540072283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5124811 + ... + 5126086.

It is an arithmetic number, because the mean of its divisors is an integer number (691935615).

Almost surely, 26540072286 is an apocalyptic number.

6540072286 is a deficient number, since it is larger than the sum of its proper divisors (4530897554).

6540072286 is a wasteful number, since it uses less digits than its factorization.

6540072286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10250939.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 6540072286 is about 80870.7134010823. The cubic root of 6540072286 is about 1870.0828588639.

The spelling of 6540072286 in words is "six billion, five hundred forty million, seventy-two thousand, two hundred eighty-six".

Divisors: 1 2 11 22 29 58 319 638 10250897 20501794 112759867 225519734 297276013 594552026 3270036143 6540072286