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142848231 = 3374992579
BaseRepresentation
bin10001000001110…
…11000011100111
3100221210102221020
420200323003213
5243032120411
622101422223
73353122101
oct1040730347
9327712836
10142848231
11736a7a99
123ba0a973
13237968a6
1414d86571
15c81a606
hex883b0e7

142848231 has 16 divisors (see below), whose sum is σ = 196080000. Its totient is φ = 92436768.

The previous prime is 142848227. The next prime is 142848271. The reversal of 142848231 is 132848241.

It is not a de Polignac number, because 142848231 - 22 = 142848227 is a prime.

It is a super-2 number, since 2×1428482312 = 40811234199658722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142848192 and 142848201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142848271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54100 + ... + 56678.

It is an arithmetic number, because the mean of its divisors is an integer number (12255000).

Almost surely, 2142848231 is an apocalyptic number.

142848231 is a deficient number, since it is larger than the sum of its proper divisors (53231769).

142848231 is a wasteful number, since it uses less digits than its factorization.

142848231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118.

The product of its digits is 12288, while the sum is 33.

The square root of 142848231 is about 11951.9132777978. The cubic root of 142848231 is about 522.7470879454.

The spelling of 142848231 in words is "one hundred forty-two million, eight hundred forty-eight thousand, two hundred thirty-one".

Divisors: 1 3 37 111 499 1497 2579 7737 18463 55389 95423 286269 1286921 3860763 47616077 142848231