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116913487 = 472487521
BaseRepresentation
bin1101111011111…
…11010101001111
322010222211011011
412331333111033
5214412212422
615333510051
72616514435
oct675772517
9263884134
10116913487
115aaa3919
12331a2327
131b2b60a2
1411754d55
15a3e6077
hex6f7f54f

116913487 has 4 divisors (see below), whose sum is σ = 119401056. Its totient is φ = 114425920.

The previous prime is 116913473. The next prime is 116913521. The reversal of 116913487 is 784319611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116913487 - 215 = 116880719 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116913457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243714 + ... + 1243807.

It is an arithmetic number, because the mean of its divisors is an integer number (29850264).

Almost surely, 2116913487 is an apocalyptic number.

116913487 is a deficient number, since it is larger than the sum of its proper divisors (2487569).

116913487 is an equidigital number, since it uses as much as digits as its factorization.

116913487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487568.

The product of its digits is 36288, while the sum is 40.

The square root of 116913487 is about 10812.6540220244. The cubic root of 116913487 is about 488.9767442796.

The spelling of 116913487 in words is "one hundred sixteen million, nine hundred thirteen thousand, four hundred eighty-seven".

Divisors: 1 47 2487521 116913487