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142143510 = 23547100811
BaseRepresentation
bin10000111100011…
…11000000010110
3100220110122020110
420132033000112
5242342043020
622034343450
73344125365
oct1036170026
9326418213
10142143510
1173266583
123b72ab86
13235aabb2
1414c417dc
15c72b8e0
hex878f016

142143510 has 32 divisors (see below), whose sum is σ = 348406272. Its totient is φ = 37098080.

The previous prime is 142143497. The next prime is 142143517. The reversal of 142143510 is 15341241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142143517) 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, 48996 + ... + 51815.

It is an arithmetic number, because the mean of its divisors is an integer number (10887696).

Almost surely, 2142143510 is an apocalyptic number.

142143510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142143510 is an abundant number, since it is smaller than the sum of its proper divisors (206262762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142143510 is a wasteful number, since it uses less digits than its factorization.

142143510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100868.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 142143510 is about 11922.3953130233. The cubic root of 142143510 is about 521.8860381568.

Adding to 142143510 its reverse (15341241), we get a palindrome (157484751).

The spelling of 142143510 in words is "one hundred forty-two million, one hundred forty-three thousand, five hundred ten".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 100811 201622 302433 504055 604866 1008110 1512165 3024330 4738117 9476234 14214351 23690585 28428702 47381170 71071755 142143510