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142737423 = 31731137659
BaseRepresentation
bin10001000001000…
…00000000001111
3100221120210221020
420200200000033
5243020044143
622055205223
73352151043
oct1040400017
9327523836
10142737423
1173631814
123b976813
132375831a
1414d58023
15c7e7883
hex882000f

142737423 has 32 divisors (see below), whose sum is σ = 209848320. Its totient is φ = 85908480.

The previous prime is 142737421. The next prime is 142737433. The reversal of 142737423 is 324737241.

It is not a de Polignac number, because 142737423 - 21 = 142737421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142737421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216268 + ... + 216926.

It is an arithmetic number, because the mean of its divisors is an integer number (6557760).

Almost surely, 2142737423 is an apocalyptic number.

142737423 is a deficient number, since it is larger than the sum of its proper divisors (67110897).

142737423 is a wasteful number, since it uses less digits than its factorization.

142737423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847.

The product of its digits is 28224, while the sum is 33.

The square root of 142737423 is about 11947.2768026860. The cubic root of 142737423 is about 522.6118872437.

The spelling of 142737423 in words is "one hundred forty-two million, seven hundred thirty-seven thousand, four hundred twenty-three".

Divisors: 1 3 17 31 51 93 137 411 527 659 1581 1977 2329 4247 6987 11203 12741 20429 33609 61287 72199 90283 216597 270849 347293 1041879 1534811 2798773 4604433 8396319 47579141 142737423