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3144409 = 10729387
BaseRepresentation
bin1011111111101011011001
312220202022121
423333223121
51301110114
6151221241
735504242
oct13775331
95822277
103144409
111858494
121077821
138612c8
145bbcc9
15421a24
hex2ffad9

3144409 has 4 divisors (see below), whose sum is σ = 3173904. Its totient is φ = 3114916.

The previous prime is 3144403. The next prime is 3144419. The reversal of 3144409 is 9044413.

It is a happy number.

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 3144409 - 29 = 3143897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3144403) 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, 14587 + ... + 14800.

It is an arithmetic number, because the mean of its divisors is an integer number (793476).

Almost surely, 23144409 is an apocalyptic number.

It is an amenable number.

3144409 is a deficient number, since it is larger than the sum of its proper divisors (29495).

3144409 is a wasteful number, since it uses less digits than its factorization.

3144409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29494.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 3144409 is about 1773.2481495831. The cubic root of 3144409 is about 146.5029411517.

It can be divided in two parts, 3144 and 409, that added together give a palindrome (3553).

The spelling of 3144409 in words is "three million, one hundred forty-four thousand, four hundred nine".

Divisors: 1 107 29387 3144409