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87914011 = 195145061
BaseRepresentation
bin1010011110101…
…11011000011011
320010102111100111
411033113120123
5140001222021
612420145151
72115154033
oct517273033
9203374314
1087914011
1145697109
12255381b7
13152a1633
14b9668c3
157ab88e1
hex53d761b

87914011 has 4 divisors (see below), whose sum is σ = 87961024. Its totient is φ = 87867000.

The previous prime is 87913997. The next prime is 87914033. The reversal of 87914011 is 11041978.

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 87914011 - 25 = 87913979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87914081) 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, 20580 + ... + 24481.

It is an arithmetic number, because the mean of its divisors is an integer number (21990256).

Almost surely, 287914011 is an apocalyptic number.

87914011 is a deficient number, since it is larger than the sum of its proper divisors (47013).

87914011 is a wasteful number, since it uses less digits than its factorization.

87914011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47012.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 87914011 is about 9376.2471703769. The cubic root of 87914011 is about 444.6510937600.

Adding to 87914011 its reverse (11041978), we get a palindrome (98955989).

The spelling of 87914011 in words is "eighty-seven million, nine hundred fourteen thousand, eleven".

Divisors: 1 1951 45061 87914011