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142315500 = 22353175581
BaseRepresentation
bin10000111101110…
…00111111101100
3100220210101011110
420132320333230
5242413044000
622042152020
73345442665
oct1036707754
9326711143
10142315500
1173373818
123b7b2610
132363b272
1414c8836c
15c762850
hex87b8fec

142315500 has 96 divisors (see below), whose sum is σ = 438879168. Its totient is φ = 35712000.

The previous prime is 142315487. The next prime is 142315507. The reversal of 142315500 is 5513241.

It is not an unprimeable number, because it can be changed into a prime (142315507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22710 + ... + 28290.

It is an arithmetic number, because the mean of its divisors is an integer number (4571658).

Almost surely, 2142315500 is an apocalyptic number.

142315500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142315500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219439584).

142315500 is an abundant number, since it is smaller than the sum of its proper divisors (296563668).

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

142315500 is a wasteful number, since it uses less digits than its factorization.

142315500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620 (or 5608 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 142315500 is about 11929.6060287002. The cubic root of 142315500 is about 522.0964428901.

Adding to 142315500 its reverse (5513241), we get a palindrome (147828741).

The spelling of 142315500 in words is "one hundred forty-two million, three hundred fifteen thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 25 30 34 50 51 60 68 75 85 100 102 125 150 170 204 250 255 300 340 375 425 500 510 750 850 1020 1275 1500 1700 2125 2550 4250 5100 5581 6375 8500 11162 12750 16743 22324 25500 27905 33486 55810 66972 83715 94877 111620 139525 167430 189754 279050 284631 334860 379508 418575 474385 558100 569262 697625 837150 948770 1138524 1395250 1423155 1674300 1897540 2092875 2371925 2790500 2846310 4185750 4743850 5692620 7115775 8371500 9487700 11859625 14231550 23719250 28463100 35578875 47438500 71157750 142315500