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247048089 = 3197983661
BaseRepresentation
bin11101011100110…
…10011110011001
3122012212100021020
432232122132121
51001221014324
640303033053
76056605551
oct1656323631
9565770236
10247048089
111174a7982
126a89b789
133c24ac02
1424b4c161
1516a4e679
hexeb9a799

247048089 has 32 divisors (see below), whose sum is σ = 355891200. Its totient is φ = 151968960.

The previous prime is 247048079. The next prime is 247048091. The reversal of 247048089 is 980840742.

It is not a de Polignac number, because 247048089 - 24 = 247048073 is a prime.

It is a super-2 number, since 2×2470480892 = 122065516557103842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247048089.

It is not an unprimeable number, because it can be changed into a prime (247048049) 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 31 ways as a sum of consecutive naturals, for example, 373419 + ... + 374079.

It is an arithmetic number, because the mean of its divisors is an integer number (11121600).

Almost surely, 2247048089 is an apocalyptic number.

It is an amenable number.

247048089 is a deficient number, since it is larger than the sum of its proper divisors (108843111).

247048089 is a wasteful number, since it uses less digits than its factorization.

247048089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 247048089 is about 15717.7634859416. The cubic root of 247048089 is about 627.4712517318.

The spelling of 247048089 in words is "two hundred forty-seven million, forty-eight thousand, eighty-nine".

Divisors: 1 3 19 57 79 83 237 249 661 1501 1577 1983 4503 4731 6557 12559 19671 37677 52219 54863 124583 156657 164589 373749 992161 1042397 2976483 3127191 4334177 13002531 82349363 247048089