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142813066 = 21131120873
BaseRepresentation
bin10001000001100…
…10011110001010
3100221201122200211
420200302132022
5243030004231
622100551334
73352614424
oct1040623612
9327648624
10142813066
1173683630
123b9b254a
1323783896
1414d77814
15c80eeb1
hex883278a

142813066 has 16 divisors (see below), whose sum is σ = 234456768. Its totient is φ = 64703200.

The previous prime is 142813043. The next prime is 142813079. The reversal of 142813066 is 660318241.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 3595 + ... + 17278.

It is an arithmetic number, because the mean of its divisors is an integer number (14653548).

Almost surely, 2142813066 is an apocalyptic number.

142813066 is a deficient number, since it is larger than the sum of its proper divisors (91643702).

142813066 is a wasteful number, since it uses less digits than its factorization.

142813066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21197.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 142813066 is about 11950.4420838729. The cubic root of 142813066 is about 522.7041894794.

The spelling of 142813066 in words is "one hundred forty-two million, eight hundred thirteen thousand, sixty-six".

Divisors: 1 2 11 22 311 622 3421 6842 20873 41746 229603 459206 6491503 12983006 71406533 142813066