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1230507 = 32472909
BaseRepresentation
bin100101100011010101011
32022111221100
410230122223
5303334012
642212443
713313325
oct4543253
92274840
101230507
11770553
124b4123
13341115
14240615
151948dc
hex12c6ab

1230507 has 12 divisors (see below), whose sum is σ = 1815840. Its totient is φ = 802608.

The previous prime is 1230491. The next prime is 1230521. The reversal of 1230507 is 7050321.

It is not a de Polignac number, because 1230507 - 24 = 1230491 is a prime.

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

1230507 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230507.

It is not an unprimeable number, because it can be changed into a prime (1230547) 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 11 ways as a sum of consecutive naturals, for example, 1032 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (151320).

21230507 is an apocalyptic number.

1230507 is a deficient number, since it is larger than the sum of its proper divisors (585333).

1230507 is a wasteful number, since it uses less digits than its factorization.

1230507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2962 (or 2959 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1230507 is about 1109.2822003440. The cubic root of 1230507 is about 107.1588463757.

Adding to 1230507 its reverse (7050321), we get a palindrome (8280828).

The spelling of 1230507 in words is "one million, two hundred thirty thousand, five hundred seven".

Divisors: 1 3 9 47 141 423 2909 8727 26181 136723 410169 1230507