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142576478 = 2112589159
BaseRepresentation
bin10000111111110…
…00101101011110
3100221021122011022
420133320231132
5242444421403
622051524142
73350610602
oct1037705536
9327248138
10142576478
1173531900
123b8b9652
13236ccca5
1414d15502
15c7b4d38
hex87f8b5e

142576478 has 12 divisors (see below), whose sum is σ = 235074840. Its totient is φ = 64807380.

The previous prime is 142576477. The next prime is 142576481. The reversal of 142576478 is 874675241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142576477) 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 5 ways as a sum of consecutive naturals, for example, 294338 + ... + 294821.

It is an arithmetic number, because the mean of its divisors is an integer number (19589570).

Almost surely, 2142576478 is an apocalyptic number.

142576478 is a deficient number, since it is larger than the sum of its proper divisors (92498362).

142576478 is a wasteful number, since it uses less digits than its factorization.

142576478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589183 (or 589172 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 142576478 is about 11940.5392675540. The cubic root of 142576478 is about 522.4153879610.

The spelling of 142576478 in words is "one hundred forty-two million, five hundred seventy-six thousand, four hundred seventy-eight".

Divisors: 1 2 11 22 121 242 589159 1178318 6480749 12961498 71288239 142576478