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3144405 = 3511171959
BaseRepresentation
bin1011111111101011010101
312220202022110
423333223111
51301110110
6151221233
735504235
oct13775325
95822273
103144405
111858490
121077819
138612c4
145bbcc5
15421a20
hex2ffad5

3144405 has 64 divisors (see below), whose sum is σ = 6220800. Its totient is φ = 1336320.

The previous prime is 3144403. The next prime is 3144419. The reversal of 3144405 is 5044413.

It is not a de Polignac number, because 3144405 - 21 = 3144403 is a prime.

It is a Curzon number.

It is a congruent 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 63 ways as a sum of consecutive naturals, for example, 53266 + ... + 53324.

It is an arithmetic number, because the mean of its divisors is an integer number (97200).

Almost surely, 23144405 is an apocalyptic number.

It is an amenable number.

3144405 is a deficient number, since it is larger than the sum of its proper divisors (3076395).

3144405 is a wasteful number, since it uses less digits than its factorization.

3144405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3144405 is about 1773.2470217090. The cubic root of 3144405 is about 146.5028790296.

Adding to 3144405 its reverse (5044413), we get a palindrome (8188818).

The spelling of 3144405 in words is "three million, one hundred forty-four thousand, four hundred five".

Divisors: 1 3 5 11 15 17 19 33 51 55 57 59 85 95 165 177 187 209 255 285 295 323 561 627 649 885 935 969 1003 1045 1121 1615 1947 2805 3009 3135 3245 3363 3553 4845 5015 5605 9735 10659 11033 12331 15045 16815 17765 19057 33099 36993 53295 55165 57171 61655 95285 165495 184965 209627 285855 628881 1048135 3144405