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142147008 = 263382261
BaseRepresentation
bin10000111100011…
…11110111000000
3100220110211001000
420132033313000
5242342201013
622034412000
73344141523
oct1036176700
9326424030
10142147008
1173269173
123b731000
13235ac673
1414c42bba
15c72c973
hex878fdc0

142147008 has 56 divisors (see below), whose sum is σ = 417890960. Its totient is φ = 47381760.

The previous prime is 142146971. The next prime is 142147051. The reversal of 142147008 is 800741241.

142147008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39403 + ... + 42858.

Almost surely, 2142147008 is an apocalyptic number.

142147008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142147008 is an abundant number, since it is smaller than the sum of its proper divisors (275743952).

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

142147008 is an equidigital number, since it uses as much as digits as its factorization.

142147008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82282 (or 82266 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 142147008 is about 11922.5420108297. The cubic root of 142147008 is about 521.8903191411.

Adding to 142147008 its reverse (800741241), we get a palindrome (942888249).

The spelling of 142147008 in words is "one hundred forty-two million, one hundred forty-seven thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 144 192 216 288 432 576 864 1728 82261 164522 246783 329044 493566 658088 740349 987132 1316176 1480698 1974264 2221047 2632352 2961396 3948528 4442094 5264704 5922792 7897056 8884188 11845584 15794112 17768376 23691168 35536752 47382336 71073504 142147008