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142255623 = 361137757
BaseRepresentation
bin10000111101010…
…10011000000111
3100220200100000210
420132222120013
5242404134443
622041010503
73345103266
oct1036523007
9326610023
10142255623
1173332834
123b783a33
1323619c33
1414c705dd
15c74ec33
hex87aa607

142255623 has 8 divisors (see below), whose sum is σ = 189729648. Its totient is φ = 94809344.

The previous prime is 142255613. The next prime is 142255627. The reversal of 142255623 is 326552241.

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

It is a cyclic number.

It is not a de Polignac number, because 142255623 - 214 = 142239239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142255627) 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, 14461 + ... + 22217.

It is an arithmetic number, because the mean of its divisors is an integer number (23716206).

Almost surely, 2142255623 is an apocalyptic number.

142255623 is a deficient number, since it is larger than the sum of its proper divisors (47474025).

142255623 is an equidigital number, since it uses as much as digits as its factorization.

142255623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13873.

The product of its digits is 14400, while the sum is 30.

The square root of 142255623 is about 11927.0961679698. The cubic root of 142255623 is about 522.0232113400.

The spelling of 142255623 in words is "one hundred forty-two million, two hundred fifty-five thousand, six hundred twenty-three".

Divisors: 1 3 6113 7757 18339 23271 47418541 142255623