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142813067 = 1327107621
BaseRepresentation
bin10001000001100…
…10011110001011
3100221201122200212
420200302132023
5243030004232
622100551335
73352614425
oct1040623613
9327648625
10142813067
1173683631
123b9b254b
1323783897
1414d77815
15c80eeb2
hex883278b

142813067 has 4 divisors (see below), whose sum is σ = 142922016. Its totient is φ = 142704120.

The previous prime is 142813043. The next prime is 142813079. The reversal of 142813067 is 760318241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 760318241 = 5091493749.

It is a cyclic number.

It is not a de Polignac number, because 142813067 - 28 = 142812811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142813087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52484 + ... + 55137.

It is an arithmetic number, because the mean of its divisors is an integer number (35730504).

Almost surely, 2142813067 is an apocalyptic number.

142813067 is a deficient number, since it is larger than the sum of its proper divisors (108949).

142813067 is a wasteful number, since it uses less digits than its factorization.

142813067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108948.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 142813067 is about 11950.4421257123. The cubic root of 142813067 is about 522.7041906994.

The spelling of 142813067 in words is "one hundred forty-two million, eight hundred thirteen thousand, sixty-seven".

Divisors: 1 1327 107621 142813067