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142717013 = 1009114143
BaseRepresentation
bin10001000000110…
…11000001010101
3100221112202221022
420200123001111
5243013421023
622054530525
73352034405
oct1040330125
9327482838
10142717013
117361844a
123b966a45
132374bc4a
1414d50805
15c7e17c8
hex881b055

142717013 has 4 divisors (see below), whose sum is σ = 142741248. Its totient is φ = 142692780.

The previous prime is 142716991. The next prime is 142717019. The reversal of 142717013 is 310717241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142717013 - 220 = 141668437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142717019) 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, 3020 + ... + 17162.

It is an arithmetic number, because the mean of its divisors is an integer number (35685312).

Almost surely, 2142717013 is an apocalyptic number.

It is an amenable number.

142717013 is a deficient number, since it is larger than the sum of its proper divisors (24235).

142717013 is a wasteful number, since it uses less digits than its factorization.

142717013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24234.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 142717013 is about 11946.4226026037. The cubic root of 142717013 is about 522.5869766612.

The spelling of 142717013 in words is "one hundred forty-two million, seven hundred seventeen thousand, thirteen".

Divisors: 1 10091 14143 142717013