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142544315 = 5163174901
BaseRepresentation
bin10000111111100…
…00110110111011
3100221020000001002
420133300312323
5242442404230
622051115215
73350415044
oct1037606673
9327200032
10142544315
117350a721
123b8a2b0b
13236bb464
1414d078cb
15c7aa545
hex87f0dbb

142544315 has 8 divisors (see below), whose sum is σ = 172103568. Its totient is φ = 113335200.

The previous prime is 142544287. The next prime is 142544329. The reversal of 142544315 is 513445241.

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

It is not a de Polignac number, because 142544315 - 218 = 142282171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86636 + ... + 88265.

It is an arithmetic number, because the mean of its divisors is an integer number (21512946).

Almost surely, 2142544315 is an apocalyptic number.

142544315 is a deficient number, since it is larger than the sum of its proper divisors (29559253).

142544315 is a wasteful number, since it uses less digits than its factorization.

142544315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175069.

The product of its digits is 9600, while the sum is 29.

The square root of 142544315 is about 11939.1923931227. The cubic root of 142544315 is about 522.3761021218.

Adding to 142544315 its reverse (513445241), we get a palindrome (655989556).

The spelling of 142544315 in words is "one hundred forty-two million, five hundred forty-four thousand, three hundred fifteen".

Divisors: 1 5 163 815 174901 874505 28508863 142544315