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142567530 = 23574011693
BaseRepresentation
bin10000111111101…
…10100001101010
3100221021011212220
420133312201222
5242444130110
622051414510
73350542530
oct1037664152
9327234786
10142567530
1173526106
123b8b4436
13236c8bb1
1414d12150
15c7b2370
hex87f686a

142567530 has 64 divisors (see below), whose sum is σ = 392249088. Its totient is φ = 32486400.

The previous prime is 142567519. The next prime is 142567561. The reversal of 142567530 is 35765241.

It is a super-2 number, since 2×1425675302 = 40651001220601800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142567491 and 142567500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83364 + ... + 85056.

It is an arithmetic number, because the mean of its divisors is an integer number (6128892).

Almost surely, 2142567530 is an apocalyptic number.

142567530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142567530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196124544).

142567530 is an abundant number, since it is smaller than the sum of its proper divisors (249681558).

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

142567530 is a wasteful number, since it uses less digits than its factorization.

142567530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 142567530 is about 11940.1645717302. The cubic root of 142567530 is about 522.4044589243.

The spelling of 142567530 in words is "one hundred forty-two million, five hundred sixty-seven thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 401 802 1203 1693 2005 2406 2807 3386 4010 5079 5614 6015 8421 8465 10158 11851 12030 14035 16842 16930 23702 25395 28070 35553 42105 50790 59255 71106 84210 118510 177765 355530 678893 1357786 2036679 3394465 4073358 4752251 6788930 9504502 10183395 14256753 20366790 23761255 28513506 47522510 71283765 142567530