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142124345 = 5112584079
BaseRepresentation
bin10000111100010…
…10010100111001
3100220102122221122
420132022110321
5242340434340
622034115025
73344015456
oct1036122471
9326378848
10142124345
1173253140
123b71ba75
13235a225c
1414c3882d
15c725db5
hex878a539

142124345 has 8 divisors (see below), whose sum is σ = 186053760. Its totient is φ = 103363120.

The previous prime is 142124293. The next prime is 142124347. The reversal of 142124345 is 543421241.

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

It is not a de Polignac number, because 142124345 - 28 = 142124089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142124347) 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 7 ways as a sum of consecutive naturals, for example, 1291985 + ... + 1292094.

It is an arithmetic number, because the mean of its divisors is an integer number (23256720).

Almost surely, 2142124345 is an apocalyptic number.

It is an amenable number.

142124345 is a deficient number, since it is larger than the sum of its proper divisors (43929415).

142124345 is a wasteful number, since it uses less digits than its factorization.

142124345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584095.

The product of its digits is 3840, while the sum is 26.

The square root of 142124345 is about 11921.5915464337. The cubic root of 142124345 is about 521.8625820608.

Adding to 142124345 its reverse (543421241), we get a palindrome (685545586).

The spelling of 142124345 in words is "one hundred forty-two million, one hundred twenty-four thousand, three hundred forty-five".

Divisors: 1 5 11 55 2584079 12920395 28424869 142124345