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8720112061 = 231372767411
BaseRepresentation
bin10000001111100001…
…00101100110111101
3211111201102120221101
420013300211212331
5120324322041221
64001142133101
7426043505143
oct100760454675
924451376841
108720112061
113775304291
121834421191
13a8c7a492b
145ca199593
15360841d91
hex207c259bd

8720112061 has 8 divisors (see below), whose sum is σ = 9165668544. Its totient is φ = 8280090720.

The previous prime is 8720112013. The next prime is 8720112097. The reversal of 8720112061 is 1602110278.

8720112061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8720112061 - 217 = 8719980989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8720112001) 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 7 ways as a sum of consecutive naturals, for example, 1380555 + ... + 1386856.

It is an arithmetic number, because the mean of its divisors is an integer number (1145708568).

Almost surely, 28720112061 is an apocalyptic number.

It is an amenable number.

8720112061 is a deficient number, since it is larger than the sum of its proper divisors (445556483).

8720112061 is a wasteful number, since it uses less digits than its factorization.

8720112061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767571.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 8720112061 is about 93381.5402582331. The cubic root of 8720112061 is about 2058.2937501338.

The spelling of 8720112061 in words is "eight billion, seven hundred twenty million, one hundred twelve thousand, sixty-one".

Divisors: 1 23 137 3151 2767411 63650453 379135307 8720112061