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7145886243 = 343157352831
BaseRepresentation
bin1101010011110110…
…11001001000100011
3200110000020122002110
412221323121020203
5104113321324433
63141025050403
7342040013406
oct65173311043
920400218073
107145886243
113037737111
121475186a03
1389b5c4572
144bb093d3d
152bc534963
hex1a9ed9223

7145886243 has 16 divisors (see below), whose sum is σ = 9811552256. Its totient is φ = 4623484320.

The previous prime is 7145886221. The next prime is 7145886283. The reversal of 7145886243 is 3426885417.

It is not a de Polignac number, because 7145886243 - 26 = 7145886179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7145886192 and 7145886201.

It is not an unprimeable number, because it can be changed into a prime (7145886283) 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 15 ways as a sum of consecutive naturals, for example, 156163 + ... + 196668.

It is an arithmetic number, because the mean of its divisors is an integer number (613222016).

Almost surely, 27145886243 is an apocalyptic number.

7145886243 is a deficient number, since it is larger than the sum of its proper divisors (2665666013).

7145886243 is a wasteful number, since it uses less digits than its factorization.

7145886243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353034.

The product of its digits is 1290240, while the sum is 48.

The square root of 7145886243 is about 84533.3439714767. The cubic root of 7145886243 is about 1926.1289823569.

The spelling of 7145886243 in words is "seven billion, one hundred forty-five million, eight hundred eighty-six thousand, two hundred forty-three".

Divisors: 1 3 43 129 157 471 6751 20253 352831 1058493 15171733 45515199 55394467 166183401 2381962081 7145886243