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80121258344 = 23109636714431
BaseRepresentation
bin100101010011110011…
…0010110000101101000
321122210210021122011202
41022213212112011220
52303042020231334
6100450204343332
75534323313321
oct1124746260550
9248723248152
1080121258344
1130a853a8296
1213640544b48
13772b2ac70a
143c40d01448
15213de7217e
hex12a7996168

80121258344 has 32 divisors (see below), whose sum is σ = 151639910400. Its totient is φ = 39684116160.

The previous prime is 80121258337. The next prime is 80121258367. The reversal of 80121258344 is 44385212108.

It is a junction number, because it is equal to n+sod(n) for n = 80121258298 and 80121258307.

It is an unprimeable number.

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, 5544809 + ... + 5559239.

It is an arithmetic number, because the mean of its divisors is an integer number (4738747200).

Almost surely, 280121258344 is an apocalyptic number.

It is an amenable number.

80121258344 is a deficient number, since it is larger than the sum of its proper divisors (71518652056).

80121258344 is a wasteful number, since it uses less digits than its factorization.

80121258344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20913 (or 20909 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 80121258344 in words is "eighty billion, one hundred twenty-one million, two hundred fifty-eight thousand, three hundred forty-four".

Divisors: 1 2 4 8 109 218 436 872 6367 12734 14431 25468 28862 50936 57724 115448 694003 1388006 1572979 2776012 3145958 5552024 6291916 12583832 91882177 183764354 367528708 735057416 10015157293 20030314586 40060629172 80121258344