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142104423 = 3263389463
BaseRepresentation
bin10000111100001…
…01011101100111
3100220101122121210
420132011131213
5242334320143
622033442503
73343603416
oct1036053547
9326348553
10142104423
117323a17a
123b710433
1323596176
1414c3147d
15c720033
hex8785767

142104423 has 16 divisors (see below), whose sum is σ = 191093760. Its totient is φ = 93930144.

The previous prime is 142104407. The next prime is 142104493. The reversal of 142104423 is 324401241.

It is not a de Polignac number, because 142104423 - 24 = 142104407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142104423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142104493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306690 + ... + 307152.

It is an arithmetic number, because the mean of its divisors is an integer number (11943360).

Almost surely, 2142104423 is an apocalyptic number.

142104423 is a deficient number, since it is larger than the sum of its proper divisors (48989337).

142104423 is a wasteful number, since it uses less digits than its factorization.

142104423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142104423 is about 11920.7559743499. The cubic root of 142104423 is about 521.8381972350.

Adding to 142104423 its reverse (324401241), we get a palindrome (466505664).

The spelling of 142104423 in words is "one hundred forty-two million, one hundred four thousand, four hundred twenty-three".

Divisors: 1 3 263 389 463 789 1167 1389 102307 121769 180107 306921 365307 540321 47368141 142104423