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3143406 = 23774843
BaseRepresentation
bin1011111111011011101110
312220200221110
423333123232
51301042111
6151212450
735501310
oct13773356
95820843
103143406
111857762
121077126
13860a06
145bb7b0
154215a6
hex2ff6ee

3143406 has 16 divisors (see below), whose sum is σ = 7185024. Its totient is φ = 898104.

The previous prime is 3143401. The next prime is 3143411. The reversal of 3143406 is 6043413.

It is an interprime number because it is at equal distance from previous prime (3143401) and next prime (3143411).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37380 + ... + 37463.

It is an arithmetic number, because the mean of its divisors is an integer number (449064).

Almost surely, 23143406 is an apocalyptic number.

3143406 is an abundant number, since it is smaller than the sum of its proper divisors (4041618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3143406 is a wasteful number, since it uses less digits than its factorization.

3143406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74855.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3143406 is about 1772.9653126895. The cubic root of 3143406 is about 146.4873623814.

Adding to 3143406 its reverse (6043413), we get a palindrome (9186819).

The spelling of 3143406 in words is "three million, one hundred forty-three thousand, four hundred six".

Divisors: 1 2 3 6 7 14 21 42 74843 149686 224529 449058 523901 1047802 1571703 3143406