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1542130 = 25154213
BaseRepresentation
bin101111000011111110010
32220100101221
411320133302
5343322010
653015254
716052002
oct5703762
92810357
101542130
11963697
1262452a
1341cc05
142c2002
15206dda
hex1787f2

1542130 has 8 divisors (see below), whose sum is σ = 2775852. Its totient is φ = 616848.

The previous prime is 1542119. The next prime is 1542131. The reversal of 1542130 is 312451.

It can be written as a sum of positive squares in 2 ways, for example, as 1485961 + 56169 = 1219^2 + 237^2 .

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 (1542131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77097 + ... + 77116.

21542130 is an apocalyptic number.

1542130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1542130 is a deficient number, since it is larger than the sum of its proper divisors (1233722).

1542130 is a wasteful number, since it uses less digits than its factorization.

1542130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154220.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1542130 is about 1241.8252695126. The cubic root of 1542130 is about 115.5332512973.

Adding to 1542130 its reverse (312451), we get a palindrome (1854581).

It can be divided in two parts, 15421 and 30, that added together give a palindrome (15451).

The spelling of 1542130 in words is "one million, five hundred forty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 154213 308426 771065 1542130