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3449407 = 13265339
BaseRepresentation
bin1101001010001000111111
320111020200211
431022020333
51340340112
6201533251
741214403
oct15121077
96436624
103449407
111a46655
1211a4227
1393a090
1465b103
154820a7
hex34a23f

3449407 has 4 divisors (see below), whose sum is σ = 3714760. Its totient is φ = 3184056.

The previous prime is 3449389. The next prime is 3449423. The reversal of 3449407 is 7049443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7049443 = 47914717.

It is a cyclic number.

It is not a de Polignac number, because 3449407 - 215 = 3416639 is a prime.

It is an Ulam number.

It is a Duffinian number.

3449407 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3449437) 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, 132657 + ... + 132682.

It is an arithmetic number, because the mean of its divisors is an integer number (928690).

Almost surely, 23449407 is an apocalyptic number.

3449407 is a deficient number, since it is larger than the sum of its proper divisors (265353).

3449407 is a wasteful number, since it uses less digits than its factorization.

3449407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265352.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 3449407 is about 1857.2579250066. The cubic root of 3449407 is about 151.0943228938.

The spelling of 3449407 in words is "three million, four hundred forty-nine thousand, four hundred seven".

Divisors: 1 13 265339 3449407