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3742271 = 13287867
BaseRepresentation
bin1110010001101000111111
321001010102122
432101220333
51424223041
6212113155
743544261
oct16215077
97033378
103742271
112126695
1213057bb
13a10480
146d5b31
154ddc4b
hex391a3f

3742271 has 4 divisors (see below), whose sum is σ = 4030152. Its totient is φ = 3454392.

The previous prime is 3742267. The next prime is 3742273. The reversal of 3742271 is 1722473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1722473 = 2397207.

It is a cyclic number.

It is not a de Polignac number, because 3742271 - 22 = 3742267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3742271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3742273) 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, 143921 + ... + 143946.

It is an arithmetic number, because the mean of its divisors is an integer number (1007538).

Almost surely, 23742271 is an apocalyptic number.

3742271 is a deficient number, since it is larger than the sum of its proper divisors (287881).

3742271 is a wasteful number, since it uses less digits than its factorization.

3742271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287880.

The product of its digits is 2352, while the sum is 26.

The square root of 3742271 is about 1934.4950245478. The cubic root of 3742271 is about 155.2548149939.

The spelling of 3742271 in words is "three million, seven hundred forty-two thousand, two hundred seventy-one".

Divisors: 1 13 287867 3742271