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980087 = 6116067
BaseRepresentation
bin11101111010001110111
31211210102112
43233101313
5222330322
633001235
711221253
oct3572167
91753375
10980087
1160a399
123b321b
13284144
141b7263
151455e2
hexef477

980087 has 4 divisors (see below), whose sum is σ = 996216. Its totient is φ = 963960.

The previous prime is 980081. The next prime is 980107. The reversal of 980087 is 780089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780089 = 829941.

It is a cyclic number.

It is not a de Polignac number, because 980087 - 24 = 980071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980087.

It is not an unprimeable number, because it can be changed into a prime (980081) 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, 7973 + ... + 8094.

It is an arithmetic number, because the mean of its divisors is an integer number (249054).

2980087 is an apocalyptic number.

980087 is a deficient number, since it is larger than the sum of its proper divisors (16129).

980087 is a wasteful number, since it uses less digits than its factorization.

980087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16128.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 980087 is about 989.9934343217. The cubic root of 980087 is about 99.3317780737.

The spelling of 980087 in words is "nine hundred eighty thousand, eighty-seven".

Divisors: 1 61 16067 980087