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7056142 = 219917729
BaseRepresentation
bin11010111010101100001110
3111021111012121
4122322230032
53301244032
6411123154
7113655562
oct32725416
914244177
107056142
113a8a425
1224434ba
131600942
14d196a2
15945a97
hex6bab0e

7056142 has 8 divisors (see below), whose sum is σ = 10638000. Its totient is φ = 3510144.

The previous prime is 7056121. The next prime is 7056167. The reversal of 7056142 is 2416507.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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, 8467 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (1329750).

Almost surely, 27056142 is an apocalyptic number.

7056142 is a deficient number, since it is larger than the sum of its proper divisors (3581858).

7056142 is a wasteful number, since it uses less digits than its factorization.

7056142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17930.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7056142 is about 2656.3399631824. The cubic root of 7056142 is about 191.8031656106.

The spelling of 7056142 in words is "seven million, fifty-six thousand, one hundred forty-two".

Divisors: 1 2 199 398 17729 35458 3528071 7056142