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4472993 = 7638999
BaseRepresentation
bin10001000100000010100001
322102020210102
4101010002201
52121113433
6235512145
753006540
oct21040241
98366712
104472993
112585698
1215b8655
13c07c55
14846157
155d54e8
hex4440a1

4472993 has 4 divisors (see below), whose sum is σ = 5112000. Its totient is φ = 3833988.

The previous prime is 4472957. The next prime is 4473011. The reversal of 4472993 is 3992744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4472993 - 214 = 4456609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4472933) 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, 319493 + ... + 319506.

It is an arithmetic number, because the mean of its divisors is an integer number (1278000).

Almost surely, 24472993 is an apocalyptic number.

It is an amenable number.

4472993 is a deficient number, since it is larger than the sum of its proper divisors (639007).

4472993 is an equidigital number, since it uses as much as digits as its factorization.

4472993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639006.

The product of its digits is 54432, while the sum is 38.

The square root of 4472993 is about 2114.9451529531. The cubic root of 4472993 is about 164.7654211746.

Subtracting from 4472993 its reverse (3992744), we obtain a square (480249 = 6932).

It can be divided in two parts, 44 and 72993, that added together give a palindrome (73037).

The spelling of 4472993 in words is "four million, four hundred seventy-two thousand, nine hundred ninety-three".

Divisors: 1 7 638999 4472993