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142386107 = 191745477
BaseRepresentation
bin10000111110010…
…10001110111011
3100220220222000112
420133022032323
5242422323412
622043454535
73346155563
oct1037121673
9326828015
10142386107
1173411876
123b82744b
1323664446
1414ca5da3
15c778722
hex87ca3bb

142386107 has 4 divisors (see below), whose sum is σ = 143131776. Its totient is φ = 141640440.

The previous prime is 142386061. The next prime is 142386109. The reversal of 142386107 is 701683241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142386107 - 26 = 142386043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142386109) 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, 372548 + ... + 372929.

It is an arithmetic number, because the mean of its divisors is an integer number (35782944).

Almost surely, 2142386107 is an apocalyptic number.

142386107 is a deficient number, since it is larger than the sum of its proper divisors (745669).

142386107 is an equidigital number, since it uses as much as digits as its factorization.

142386107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745668.

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

The square root of 142386107 is about 11932.5649799194. The cubic root of 142386107 is about 522.1827711978.

The spelling of 142386107 in words is "one hundred forty-two million, three hundred eighty-six thousand, one hundred seven".

Divisors: 1 191 745477 142386107