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2745001 = 7392143
BaseRepresentation
bin1010011110001010101001
312011110102201
422132022221
51200320001
6134500201
732221630
oct12361251
95143381
102745001
1116053a6
12b04661
1375157c
14516517
15393501
hex29e2a9

2745001 has 4 divisors (see below), whose sum is σ = 3137152. Its totient is φ = 2352852.

The previous prime is 2744969. The next prime is 2745011. The reversal of 2745001 is 1005472.

2745001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2745001 - 25 = 2744969 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 2745001.

It is not an unprimeable number, because it can be changed into a prime (2745011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196065 + ... + 196078.

It is an arithmetic number, because the mean of its divisors is an integer number (784288).

22745001 is an apocalyptic number.

It is an amenable number.

2745001 is a deficient number, since it is larger than the sum of its proper divisors (392151).

2745001 is an equidigital number, since it uses as much as digits as its factorization.

2745001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392150.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2745001 is about 1656.8044543639. The cubic root of 2745001 is about 140.0170217399.

The spelling of 2745001 in words is "two million, seven hundred forty-five thousand, one".

Divisors: 1 7 392143 2745001