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6145385 = 51229077
BaseRepresentation
bin10111011100010101101001
3102120012212212
4113130111221
53033123020
6335414505
7103143401
oct27342551
912505785
106145385
113518134
122084435
13137222c
14b5d801
15815cc5
hex5dc569

6145385 has 4 divisors (see below), whose sum is σ = 7374468. Its totient is φ = 4916304.

The previous prime is 6145369. The next prime is 6145387. The reversal of 6145385 is 5835416.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3671056 + 2474329 = 1916^2 + 1573^2 .

It is a cyclic number.

It is not a de Polignac number, because 6145385 - 24 = 6145369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6145387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614534 + ... + 614543.

It is an arithmetic number, because the mean of its divisors is an integer number (1843617).

Almost surely, 26145385 is an apocalyptic number.

It is an amenable number.

6145385 is a deficient number, since it is larger than the sum of its proper divisors (1229083).

6145385 is a wasteful number, since it uses less digits than its factorization.

6145385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229082.

The product of its digits is 14400, while the sum is 32.

The square root of 6145385 is about 2478.9887050973. The cubic root of 6145385 is about 183.1680401810.

The spelling of 6145385 in words is "six million, one hundred forty-five thousand, three hundred eighty-five".

Divisors: 1 5 1229077 6145385