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142148075 = 5220172819
BaseRepresentation
bin10000111100100…
…00000111101011
3100220110212111112
420132100013223
5242342214300
622034420535
73344144606
oct1036200753
9326425445
10142148075
1173269a53
123b73174b
13235accb4
1414c4333d
15c72ce35
hex87901eb

142148075 has 12 divisors (see below), whose sum is σ = 176413560. Its totient is φ = 113621760.

The previous prime is 142148059. The next prime is 142148087. The reversal of 142148075 is 570841241.

It is a happy number.

It is not a de Polignac number, because 142148075 - 24 = 142148059 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 49016 + ... + 51834.

It is an arithmetic number, because the mean of its divisors is an integer number (14701130).

Almost surely, 2142148075 is an apocalyptic number.

142148075 is a deficient number, since it is larger than the sum of its proper divisors (34265485).

142148075 is a wasteful number, since it uses less digits than its factorization.

142148075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846 (or 4841 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 142148075 is about 11922.5867579146. The cubic root of 142148075 is about 521.8916249619.

The spelling of 142148075 in words is "one hundred forty-two million, one hundred forty-eight thousand, seventy-five".

Divisors: 1 5 25 2017 2819 10085 14095 50425 70475 5685923 28429615 142148075