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142886727 = 3322512351
BaseRepresentation
bin10001000010001…
…00011101000111
3100221212101202000
420201010131013
5243034333402
622102320343
73353342244
oct1041043507
9327771660
10142886727
1173723a05
123ba290b3
13237ab279
1414d965cb
15c826c1c
hex8844747

142886727 has 16 divisors (see below), whose sum is σ = 211868160. Its totient is φ = 95175000.

The previous prime is 142886713. The next prime is 142886749. The reversal of 142886727 is 727688241.

It is not a de Polignac number, because 142886727 - 26 = 142886663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142886767) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 59602 + ... + 61952.

It is an arithmetic number, because the mean of its divisors is an integer number (13241760).

Almost surely, 2142886727 is an apocalyptic number.

142886727 is a deficient number, since it is larger than the sum of its proper divisors (68981433).

142886727 is a wasteful number, since it uses less digits than its factorization.

142886727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611 (or 4605 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 142886727 is about 11953.5236227650. The cubic root of 142886727 is about 522.7940418916.

The spelling of 142886727 in words is "one hundred forty-two million, eight hundred eighty-six thousand, seven hundred twenty-seven".

Divisors: 1 3 9 27 2251 2351 6753 7053 20259 21159 60777 63477 5292101 15876303 47628909 142886727