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142102256 = 248881391
BaseRepresentation
bin10000111100001…
…00111011110000
3100220101112122112
420132010323300
5242334233011
622033424452
73343564202
oct1036047360
9326345575
10142102256
117323858a
123b70b128
132359519a
1414c30772
15c71e58b
hex8784ef0

142102256 has 10 divisors (see below), whose sum is σ = 275323152. Its totient is φ = 71051120.

The previous prime is 142102241. The next prime is 142102271. The reversal of 142102256 is 652201241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (142102241) and next prime (142102271).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4440680 + ... + 4440711.

Almost surely, 2142102256 is an apocalyptic number.

142102256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

142102256 is a deficient number, since it is larger than the sum of its proper divisors (133220896).

142102256 is an equidigital number, since it uses as much as digits as its factorization.

142102256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8881399 (or 8881393 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 142102256 is about 11920.6650821169. The cubic root of 142102256 is about 521.8355446572.

Adding to 142102256 its reverse (652201241), we get a palindrome (794303497).

The spelling of 142102256 in words is "one hundred forty-two million, one hundred two thousand, two hundred fifty-six".

Divisors: 1 2 4 8 16 8881391 17762782 35525564 71051128 142102256