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142799208 = 23330719381
BaseRepresentation
bin10001000001011…
…11000101101000
3100221200221200120
420200233011220
5243024033313
622100403240
73352526136
oct1040570550
9327627616
10142799208
1173674182
123b9a6520
132377a496
1414d72756
15c80ad23
hex882f168

142799208 has 32 divisors (see below), whose sum is σ = 358179360. Its totient is φ = 47442240.

The previous prime is 142799197. The next prime is 142799213. The reversal of 142799208 is 802997241.

It is a super-2 number, since 2×1427992082 = 40783227610854528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142799208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2323 + ... + 17058.

It is an arithmetic number, because the mean of its divisors is an integer number (11193105).

Almost surely, 2142799208 is an apocalyptic number.

It is an amenable number.

142799208 is an abundant number, since it is smaller than the sum of its proper divisors (215380152).

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

142799208 is a wasteful number, since it uses less digits than its factorization.

142799208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19697 (or 19693 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 142799208 is about 11949.8622586204. The cubic root of 142799208 is about 522.6872819018.

The spelling of 142799208 in words is "one hundred forty-two million, seven hundred ninety-nine thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 24 307 614 921 1228 1842 2456 3684 7368 19381 38762 58143 77524 116286 155048 232572 465144 5949967 11899934 17849901 23799868 35699802 47599736 71399604 142799208