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142000867 = 793717891
BaseRepresentation
bin10000111011011…
…00001011100011
3100220012101120101
420131230023203
5242323011432
622031323231
73342662461
oct1035541343
9326171511
10142000867
1173179398
123b680517
132355aca8
1414c05831
15c6ee4e7
hex876c2e3

142000867 has 4 divisors (see below), whose sum is σ = 142026696. Its totient is φ = 141975040.

The previous prime is 142000861. The next prime is 142000883. The reversal of 142000867 is 768000241.

142000867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768000241 = 1977738833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142000867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142000861) 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, 1009 + ... + 16882.

It is an arithmetic number, because the mean of its divisors is an integer number (35506674).

Almost surely, 2142000867 is an apocalyptic number.

142000867 is a deficient number, since it is larger than the sum of its proper divisors (25829).

142000867 is an equidigital number, since it uses as much as digits as its factorization.

142000867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25828.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 142000867 is about 11916.4116662693. The cubic root of 142000867 is about 521.7114064162.

The spelling of 142000867 in words is "one hundred forty-two million, eight hundred sixty-seven", and thus it is an aban number.

Divisors: 1 7937 17891 142000867