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998590601 = 1489767033
BaseRepresentation
bin111011100001010…
…100100010001001
32120121000122210002
4323201110202021
54021114344401
6243031132345
733513610601
oct7341244211
92517018702
10998590601
11472750998
1223a5140b5
1312bb65818
14968a1c01
155ca03a6b
hex3b854889

998590601 has 4 divisors (see below), whose sum is σ = 998672532. Its totient is φ = 998508672.

The previous prime is 998590597. The next prime is 998590603. The reversal of 998590601 is 106095899.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 447280201 + 551310400 = 21149^2 + 23480^2 .

It is a cyclic number.

It is not a de Polignac number, because 998590601 - 22 = 998590597 is a prime.

It is a super-3 number, since 3×9985906013 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (998590603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18620 + ... + 48413.

It is an arithmetic number, because the mean of its divisors is an integer number (249668133).

It is a Poulet number, since it divides 2998590600-1.

Almost surely, 2998590601 is an apocalyptic number.

It is an amenable number.

998590601 is a deficient number, since it is larger than the sum of its proper divisors (81931).

998590601 is a wasteful number, since it uses less digits than its factorization.

998590601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81930.

The product of its (nonzero) digits is 174960, while the sum is 47.

The square root of 998590601 is about 31600.4841893285. The cubic root of 998590601 is about 999.5299794486.

The spelling of 998590601 in words is "nine hundred ninety-eight million, five hundred ninety thousand, six hundred one".

Divisors: 1 14897 67033 998590601