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6669433 = 31215143
BaseRepresentation
bin11001011100010001111001
3110112211202001
4121130101321
53201410213
6354541001
7110455261
oct31342171
913484661
106669433
113845931
122297761
1314c6914
14c587a1
158bb1dd
hex65c479

6669433 has 4 divisors (see below), whose sum is σ = 6884608. Its totient is φ = 6454260.

The previous prime is 6669413. The next prime is 6669451. The reversal of 6669433 is 3349666.

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 6669433 - 25 = 6669401 is a prime.

It is a Duffinian number.

6669433 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6669392 and 6669401.

It is not an unprimeable number, because it can be changed into a prime (6669413) 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, 107541 + ... + 107602.

It is an arithmetic number, because the mean of its divisors is an integer number (1721152).

Almost surely, 26669433 is an apocalyptic number.

It is an amenable number.

6669433 is a deficient number, since it is larger than the sum of its proper divisors (215175).

6669433 is a wasteful number, since it uses less digits than its factorization.

6669433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215174.

The product of its digits is 69984, while the sum is 37.

The square root of 6669433 is about 2582.5245400577. The cubic root of 6669433 is about 188.2332343697.

The spelling of 6669433 in words is "six million, six hundred sixty-nine thousand, four hundred thirty-three".

Divisors: 1 31 215143 6669433