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142458086 = 2193748897
BaseRepresentation
bin10000111110110…
…11110011100110
3100221001121202102
420133123303212
5242432124321
622045212102
73346605461
oct1037336346
9327047672
10142458086
1173460961
123b861032
132368b134
1414cc42d8
15c78ec0b
hex87dbce6

142458086 has 8 divisors (see below), whose sum is σ = 224933880. Its totient is φ = 67480128.

The previous prime is 142458073. The next prime is 142458089. The reversal of 142458086 is 680854241.

It is a happy number.

142458086 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 3748897 = 142458086 / (1 + 4 + 2 + 4 + 5 + 8 + 0 + 8 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142458089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874411 + ... + 1874486.

It is an arithmetic number, because the mean of its divisors is an integer number (28116735).

Almost surely, 2142458086 is an apocalyptic number.

142458086 is a deficient number, since it is larger than the sum of its proper divisors (82475794).

142458086 is a wasteful number, since it uses less digits than its factorization.

142458086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748918.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 142458086 is about 11935.5806729292. The cubic root of 142458086 is about 522.2707476227.

The spelling of 142458086 in words is "one hundred forty-two million, four hundred fifty-eight thousand, eighty-six".

Divisors: 1 2 19 38 3748897 7497794 71229043 142458086