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2993231 = 7937889
BaseRepresentation
bin1011011010110001001111
312122001221102
423122301033
51231240411
6144053315
734304423
oct13326117
95561842
102993231
11176494a
12100423b
1380a557
1457cb83
153e1d3b
hex2dac4f

2993231 has 4 divisors (see below), whose sum is σ = 3031200. Its totient is φ = 2955264.

The previous prime is 2993227. The next prime is 2993269. The reversal of 2993231 is 1323992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2993231 - 22 = 2993227 is a prime.

It is a super-2 number, since 2×29932312 = 17918863638722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2993194 and 2993203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2993131) 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, 18866 + ... + 19023.

It is an arithmetic number, because the mean of its divisors is an integer number (757800).

22993231 is an apocalyptic number.

2993231 is a deficient number, since it is larger than the sum of its proper divisors (37969).

2993231 is an equidigital number, since it uses as much as digits as its factorization.

2993231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37968.

The product of its digits is 2916, while the sum is 29.

The square root of 2993231 is about 1730.0956620950. The cubic root of 2993231 is about 144.1164021517.

The spelling of 2993231 in words is "two million, nine hundred ninety-three thousand, two hundred thirty-one".

Divisors: 1 79 37889 2993231