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1230741 = 3379577
BaseRepresentation
bin100101100011110010101
32022112021000
410230132111
5303340431
642213513
713314111
oct4543625
92275230
101230741
11770746
124b4299
13341265
14240741
151949e6
hex12c795

1230741 has 16 divisors (see below), whose sum is σ = 1849600. Its totient is φ = 808704.

The previous prime is 1230739. The next prime is 1230743. The reversal of 1230741 is 1470321.

It is an interprime number because it is at equal distance from previous prime (1230739) and next prime (1230743).

It is not a de Polignac number, because 1230741 - 21 = 1230739 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1230741 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230743) 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 15 ways as a sum of consecutive naturals, for example, 1845 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (115600).

21230741 is an apocalyptic number.

It is an amenable number.

1230741 is a deficient number, since it is larger than the sum of its proper divisors (618859).

1230741 is an equidigital number, since it uses as much as digits as its factorization.

1230741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1230741 is about 1109.3876689417. The cubic root of 1230741 is about 107.1656385843.

The spelling of 1230741 in words is "one million, two hundred thirty thousand, seven hundred forty-one".

Divisors: 1 3 9 27 79 237 577 711 1731 2133 5193 15579 45583 136749 410247 1230741