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142303246 = 2127560249
BaseRepresentation
bin10000111101101…
…10000000001110
3100220202202100121
420132312000032
5242412200441
622042015154
73345362161
oct1036660016
9326682317
10142303246
1173365598
123b7a74ba
1323635807
1414c83ad8
15c75ddd1
hex87b600e

142303246 has 8 divisors (see below), whose sum is σ = 215136000. Its totient is φ = 70591248.

The previous prime is 142303223. The next prime is 142303247. The reversal of 142303246 is 642303241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 142303246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142303247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279871 + ... + 280378.

It is an arithmetic number, because the mean of its divisors is an integer number (26892000).

Almost surely, 2142303246 is an apocalyptic number.

142303246 is a deficient number, since it is larger than the sum of its proper divisors (72832754).

142303246 is a wasteful number, since it uses less digits than its factorization.

142303246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560378.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 142303246 is about 11929.0924214711. The cubic root of 142303246 is about 522.0814575150.

Adding to 142303246 its reverse (642303241), we get a palindrome (784606487).

The spelling of 142303246 in words is "one hundred forty-two million, three hundred three thousand, two hundred forty-six".

Divisors: 1 2 127 254 560249 1120498 71151623 142303246