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980001 = 321119521
BaseRepresentation
bin11101111010000100001
31211210022100
43233100201
5222330001
633001013
711221101
oct3572041
91753270
10980001
1160a320
123b3169
132840a9
141b7201
15145586
hexef421

980001 has 24 divisors (see below), whose sum is σ = 1628640. Its totient is φ = 561600.

The previous prime is 979987. The next prime is 980027. The reversal of 980001 is 100089.

980001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 980001 - 25 = 979969 is a prime.

980001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (980071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1621 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (67860).

2980001 is an apocalyptic number.

It is an amenable number.

980001 is a deficient number, since it is larger than the sum of its proper divisors (648639).

980001 is a wasteful number, since it uses less digits than its factorization.

980001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 980001 is about 989.9499987373. The cubic root of 980001 is about 99.3288726232.

The spelling of 980001 in words is "nine hundred eighty thousand, one".

Divisors: 1 3 9 11 19 33 57 99 171 209 521 627 1563 1881 4689 5731 9899 17193 29697 51579 89091 108889 326667 980001