Search a number
-
+
1200490 = 25120049
BaseRepresentation
bin100100101000101101010
32020222202121
410211011222
5301403430
641421454
713126654
oct4450552
92228677
101200490
1174aa45
1249a88a
13330565
142336d4
1518aa7a
hex12516a

1200490 has 8 divisors (see below), whose sum is σ = 2160900. Its totient is φ = 480192.

The previous prime is 1200467. The next prime is 1200491. The reversal of 1200490 is 940021.

It can be written as a sum of positive squares in 2 ways, for example, as 1138489 + 62001 = 1067^2 + 249^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1200491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60015 + ... + 60034.

21200490 is an apocalyptic number.

1200490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200490 is a deficient number, since it is larger than the sum of its proper divisors (960410).

1200490 is a wasteful number, since it uses less digits than its factorization.

1200490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120056.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1200490 is about 1095.6687455614. The cubic root of 1200490 is about 106.2803189139.

The spelling of 1200490 in words is "one million, two hundred thousand, four hundred ninety".

Divisors: 1 2 5 10 120049 240098 600245 1200490