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87380233260849 = 334768857551821
BaseRepresentation
bin10011110111100011001011…
…110000111000111100110001
3102110101110122200202222111000
4103313203023300320330301
542423114204203321344
6505501531444312213
724256004431561464
oct2367431360707461
9373343580688430
1087380233260849
1125929826750121
129972a5b3a2669
13399abc7852809
141781323a672db
15a17e614dea69
hex4f78cbc38f31

87380233260849 has 16 divisors (see below), whose sum is σ = 132206499498240. Its totient is φ = 57014052906960.

The previous prime is 87380233260841. The next prime is 87380233260899. The reversal of 87380233260849 is 94806233208378.

It is a happy number.

It is not a de Polignac number, because 87380233260849 - 23 = 87380233260841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87380233260841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34428774642 + ... + 34428777179.

It is an arithmetic number, because the mean of its divisors is an integer number (8262906218640).

Almost surely, 287380233260849 is an apocalyptic number.

It is an amenable number.

87380233260849 is a deficient number, since it is larger than the sum of its proper divisors (44826266237391).

87380233260849 is a wasteful number, since it uses less digits than its factorization.

87380233260849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68857551877 (or 68857551871 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 63.

The spelling of 87380233260849 in words is "eighty-seven trillion, three hundred eighty billion, two hundred thirty-three million, two hundred sixty thousand, eight hundred forty-nine".

Divisors: 1 3 9 27 47 141 423 1269 68857551821 206572655463 619717966389 1859153899167 3236304935587 9708914806761 29126744420283 87380233260849