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2745938 = 213105613
BaseRepresentation
bin1010011110011001010010
312011111201102
422132121102
51200332223
6134504402
732224436
oct12363122
95144642
102745938
111606078
12b05102
13751b20
145169c6
15393928
hex29e652

2745938 has 8 divisors (see below), whose sum is σ = 4435788. Its totient is φ = 1267344.

The previous prime is 2745931. The next prime is 2745971. The reversal of 2745938 is 8395472.

2745938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2745649 + 289 = 1657^2 + 17^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 219 + 76 + 44 + 5 + 94 + 33 + 87 .

It is not an unprimeable number, because it can be changed into a prime (2745931) 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, 52781 + ... + 52832.

22745938 is an apocalyptic number.

2745938 is a deficient number, since it is larger than the sum of its proper divisors (1689850).

2745938 is a wasteful number, since it uses less digits than its factorization.

2745938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105628.

The product of its digits is 60480, while the sum is 38.

The square root of 2745938 is about 1657.0872034990. The cubic root of 2745938 is about 140.0329514274.

The spelling of 2745938 in words is "two million, seven hundred forty-five thousand, nine hundred thirty-eight".

Divisors: 1 2 13 26 105613 211226 1372969 2745938