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8120242495 = 541253915601
BaseRepresentation
bin1111001000000000…
…10001000100111111
3202221220200001121001
413210000101010333
5113112240224440
63421432551131
7405140631241
oct74400210477
922856601531
108120242495
113497735412
1216a75524a7
139c5423521
14570648091
15327d4cb9a
hex1e401113f

8120242495 has 16 divisors (see below), whose sum is σ = 9986528160. Its totient is φ = 6334848000.

The previous prime is 8120242463. The next prime is 8120242513. The reversal of 8120242495 is 5942420218.

It is not a de Polignac number, because 8120242495 - 25 = 8120242463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512695 + ... + 528295.

It is an arithmetic number, because the mean of its divisors is an integer number (624158010).

Almost surely, 28120242495 is an apocalyptic number.

8120242495 is a deficient number, since it is larger than the sum of its proper divisors (1866285665).

8120242495 is a wasteful number, since it uses less digits than its factorization.

8120242495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18186.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 8120242495 is about 90112.3881328200. The cubic root of 8120242495 is about 2009.9704206764.

The spelling of 8120242495 in words is "eight billion, one hundred twenty million, two hundred forty-two thousand, four hundred ninety-five".

Divisors: 1 5 41 205 2539 12695 15601 78005 104099 520495 639641 3198205 39610939 198054695 1624048499 8120242495