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2998993 = 231011291
BaseRepresentation
bin1011011100001011010001
312122100211211
423130023101
51231431433
6144140121
734330264
oct13341321
95570754
102998993
111769208
121007641
1381006a
14580cdb
153e38cd
hex2dc2d1

2998993 has 8 divisors (see below), whose sum is σ = 3162816. Its totient is φ = 2838000.

The previous prime is 2998991. The next prime is 2998997. The reversal of 2998993 is 3998992.

2998993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2998993 - 21 = 2998991 is a prime.

It is an Ulam number.

It is a Duffinian number.

2998993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2998991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1678 + ... + 2968.

It is an arithmetic number, because the mean of its divisors is an integer number (395352).

22998993 is an apocalyptic number.

2998993 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2998993 is a deficient number, since it is larger than the sum of its proper divisors (163823).

2998993 is a wasteful number, since it uses less digits than its factorization.

2998993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 314928, while the sum is 49.

The square root of 2998993 is about 1731.7600873100. The cubic root of 2998993 is about 144.2088180546.

Subtracting 2998993 from its reverse (3998992), we obtain a palindrome (999999).

The spelling of 2998993 in words is "two million, nine hundred ninety-eight thousand, nine hundred ninety-three".

Divisors: 1 23 101 1291 2323 29693 130391 2998993