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987141 = 3477001
BaseRepresentation
bin11110001000000000101
31212011002210
43301000011
5223042031
633054033
711250651
oct3610005
91764083
10987141
11614721
123b7319
1328740c
141b9a61
15147746
hexf1005

987141 has 8 divisors (see below), whose sum is σ = 1344384. Its totient is φ = 644000.

The previous prime is 987127. The next prime is 987143. The reversal of 987141 is 141789.

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 987141 - 27 = 987013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 987099 and 987108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3360 + ... + 3641.

It is an arithmetic number, because the mean of its divisors is an integer number (168048).

2987141 is an apocalyptic number.

It is an amenable number.

987141 is a deficient number, since it is larger than the sum of its proper divisors (357243).

987141 is a wasteful number, since it uses less digits than its factorization.

987141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051.

The product of its digits is 2016, while the sum is 30.

The square root of 987141 is about 993.5496967943. The cubic root of 987141 is about 99.5695161625.

It can be divided in two parts, 987 and 141, that added together give a triangular number (1128 = T47).

The spelling of 987141 in words is "nine hundred eighty-seven thousand, one hundred forty-one".

Divisors: 1 3 47 141 7001 21003 329047 987141