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142625320 = 2356158453
BaseRepresentation
bin10001000000001…
…00101000101000
3100221101010011021
420200010220220
5243003002240
622052542224
73351203155
oct1040045050
9327333137
10142625320
1173565572
123b921974
13237192a6
1414d2922c
15c7c454a
hex8804a28

142625320 has 32 divisors (see below), whose sum is σ = 326173320. Its totient is φ = 56113920.

The previous prime is 142625317. The next prime is 142625321. The reversal of 142625320 is 23526241.

It can be written as a sum of positive squares in 4 ways, for example, as 31069476 + 111555844 = 5574^2 + 10562^2 .

It is not an unprimeable number, because it can be changed into a prime (142625321) 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 7 ways as a sum of consecutive naturals, for example, 26787 + ... + 31666.

Almost surely, 2142625320 is an apocalyptic number.

142625320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142625320 is an abundant number, since it is smaller than the sum of its proper divisors (183548000).

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

142625320 is a wasteful number, since it uses less digits than its factorization.

142625320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58525 (or 58521 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 142625320 is about 11942.5843099390. The cubic root of 142625320 is about 522.4750352456.

The spelling of 142625320 in words is "one hundred forty-two million, six hundred twenty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 58453 116906 233812 292265 467624 584530 1169060 2338120 3565633 7131266 14262532 17828165 28525064 35656330 71312660 142625320