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4121385 = 351914461
BaseRepresentation
bin1111101110001100101001
321202101110220
433232030221
52023341020
6224200253
750013462
oct17561451
97671426
104121385
112365504
121469089
13b13bb8
14793d69
15566240
hex3ee329

4121385 has 16 divisors (see below), whose sum is σ = 6941760. Its totient is φ = 2082240.

The previous prime is 4121321. The next prime is 4121387. The reversal of 4121385 is 5831214.

It is not a de Polignac number, because 4121385 - 26 = 4121321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4121387) 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 15 ways as a sum of consecutive naturals, for example, 6946 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (433860).

Almost surely, 24121385 is an apocalyptic number.

It is an amenable number.

4121385 is a deficient number, since it is larger than the sum of its proper divisors (2820375).

4121385 is a wasteful number, since it uses less digits than its factorization.

4121385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14488.

The product of its digits is 960, while the sum is 24.

The square root of 4121385 is about 2030.1194546134. The cubic root of 4121385 is about 160.3298533666.

Adding to 4121385 its reverse (5831214), we get a palindrome (9952599).

The spelling of 4121385 in words is "four million, one hundred twenty-one thousand, three hundred eighty-five".

Divisors: 1 3 5 15 19 57 95 285 14461 43383 72305 216915 274759 824277 1373795 4121385