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142116915 = 359474461
BaseRepresentation
bin10000111100010…
…00100000110011
3100220102021202110
420132020200303
5242340220130
622034020403
73343655013
oct1036104063
9326367673
10142116915
11732485a6
123b717703
132359ba65
1414c35c43
15c723ab0
hex8788833

142116915 has 8 divisors (see below), whose sum is σ = 227387088. Its totient is φ = 75795680.

The previous prime is 142116893. The next prime is 142116959. The reversal of 142116915 is 519611241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142116915 - 26 = 142116851 is a prime.

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, 4737216 + ... + 4737245.

It is an arithmetic number, because the mean of its divisors is an integer number (28423386).

Almost surely, 2142116915 is an apocalyptic number.

142116915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142116915 is a deficient number, since it is larger than the sum of its proper divisors (85270173).

142116915 is an equidigital number, since it uses as much as digits as its factorization.

142116915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9474469.

The product of its digits is 2160, while the sum is 30.

The square root of 142116915 is about 11921.2799228942. The cubic root of 142116915 is about 521.8534878962.

It can be divided in two parts, 1421 and 16915, that added together give a triangular number (18336 = T191).

The spelling of 142116915 in words is "one hundred forty-two million, one hundred sixteen thousand, nine hundred fifteen".

Divisors: 1 3 5 15 9474461 28423383 47372305 142116915