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4869145 = 54092381
BaseRepresentation
bin10010100100110000011001
3100011101012201
4102210300121
52221303040
6252210201
756246521
oct22446031
910141181
104869145
112826296
121769961
131016368
1490a681
15662a9a
hex4a4c19

4869145 has 8 divisors (see below), whose sum is σ = 5859720. Its totient is φ = 3884160.

The previous prime is 4869143. The next prime is 4869167. The reversal of 4869145 is 5419684.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 168921 + 4700224 = 411^2 + 2168^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4869145 - 21 = 4869143 is a prime.

It is an Ulam number.

4869145 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4869143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855 + ... + 3235.

It is an arithmetic number, because the mean of its divisors is an integer number (732465).

Almost surely, 24869145 is an apocalyptic number.

It is an amenable number.

4869145 is a deficient number, since it is larger than the sum of its proper divisors (990575).

4869145 is a wasteful number, since it uses less digits than its factorization.

4869145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795.

The product of its digits is 34560, while the sum is 37.

The square root of 4869145 is about 2206.6139218268. The cubic root of 4869145 is about 169.4926627582.

The spelling of 4869145 in words is "four million, eight hundred sixty-nine thousand, one hundred forty-five".

Divisors: 1 5 409 2045 2381 11905 973829 4869145