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2999983 = 7428569
BaseRepresentation
bin1011011100011010101111
312122102012111
423130122233
51231444413
6144144451
734333210
oct13343257
95572174
102999983
111769a28
121008127
1381064c
14581407
153e3d3d
hex2dc6af

2999983 has 4 divisors (see below), whose sum is σ = 3428560. Its totient is φ = 2571408.

The previous prime is 2999957. The next prime is 2999999. The reversal of 2999983 is 3899992.

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

It is not a de Polignac number, because 2999983 - 25 = 2999951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214278 + ... + 214291.

It is an arithmetic number, because the mean of its divisors is an integer number (857140).

22999983 is an apocalyptic number.

2999983 is a deficient number, since it is larger than the sum of its proper divisors (428577).

2999983 is an equidigital number, since it uses as much as digits as its factorization.

2999983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428576.

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

The square root of 2999983 is about 1732.0459000846. The cubic root of 2999983 is about 144.2246846053.

Subtracting 2999983 from its reverse (3899992), we obtain a palindrome (900009).

The spelling of 2999983 in words is "two million, nine hundred ninety-nine thousand, nine hundred eighty-three".

Divisors: 1 7 428569 2999983