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999998001 = 33371000999
BaseRepresentation
bin111011100110101…
…100001000110001
32120200200011101000
4323212230020301
54021444414001
6243121232213
733531562032
oct7346541061
92520604330
10999998001
11473522332
1223aa92669
1312c2392c2
1496b4aa89
155cbd0a86
hex3b9ac231

999998001 has 16 divisors (see below), whose sum is σ = 1521520000. Its totient is φ = 648646704.

The previous prime is 999997967. The next prime is 999998003. The reversal of 999998001 is 100899999.

999998001 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 999998001 - 29 = 999997489 is a prime.

It is a Duffinian number.

999998001 is a modest number, since divided by 998001 gives 999 as remainder.

It is not an unprimeable number, because it can be changed into a prime (999998003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499501 + ... + 501498.

It is an arithmetic number, because the mean of its divisors is an integer number (95095000).

Almost surely, 2999998001 is an apocalyptic number.

It is an amenable number.

999998001 is a deficient number, since it is larger than the sum of its proper divisors (521521999).

999998001 is a wasteful number, since it uses less digits than its factorization.

999998001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001045 (or 1001039 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 54.

The square root of 999998001 is about 31622.7449947028. The cubic root of 999998001 is about 999.9993336662. Note that the first 3 decimals are identical.

The spelling of 999998001 in words is "nine hundred ninety-nine million, nine hundred ninety-eight thousand, one".

Divisors: 1 3 9 27 37 111 333 999 1000999 3002997 9008991 27026973 37036963 111110889 333332667 999998001