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142249606 = 2235130253
BaseRepresentation
bin10000111101010…
…00111010000110
3100220200000202221
420132220322012
5242403441411
622040522554
73345046612
oct1036507206
9326600687
10142249606
1173329264
123b78045a
1323617285
1414c6c342
15c74d071
hex87a8e86

142249606 has 8 divisors (see below), whose sum is σ = 213472224. Its totient is φ = 71092200.

The previous prime is 142249603. The next prime is 142249619. The reversal of 142249606 is 606942241.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142249603) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 10425 + ... + 19828.

It is an arithmetic number, because the mean of its divisors is an integer number (26684028).

Almost surely, 2142249606 is an apocalyptic number.

142249606 is a deficient number, since it is larger than the sum of its proper divisors (71222618).

142249606 is a wasteful number, since it uses less digits than its factorization.

142249606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32606.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 142249606 is about 11926.8439245259. The cubic root of 142249606 is about 522.0158512139.

The spelling of 142249606 in words is "one hundred forty-two million, two hundred forty-nine thousand, six hundred six".

Divisors: 1 2 2351 4702 30253 60506 71124803 142249606