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1520042 = 21077103
BaseRepresentation
bin101110011000110101010
32212020002212
411303012222
5342120132
652325122
715630416
oct5630652
92766085
101520042
11949037
126137a2
13412b44
142b7d46
152005b2
hex1731aa

1520042 has 8 divisors (see below), whose sum is σ = 2301696. Its totient is φ = 752812.

The previous prime is 1520011. The next prime is 1520069. The reversal of 1520042 is 2400251.

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

It is a junction number, because it is equal to n+sod(n) for n = 1519999 and 1520026.

It is an unprimeable number.

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, 3338 + ... + 3765.

It is an arithmetic number, because the mean of its divisors is an integer number (287712).

21520042 is an apocalyptic number.

1520042 is a deficient number, since it is larger than the sum of its proper divisors (781654).

1520042 is a wasteful number, since it uses less digits than its factorization.

1520042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1520042 is about 1232.8998337254. The cubic root of 1520042 is about 114.9790005765.

Adding to 1520042 its reverse (2400251), we get a palindrome (3920293).

The spelling of 1520042 in words is "one million, five hundred twenty thousand, forty-two".

Divisors: 1 2 107 214 7103 14206 760021 1520042