Search a number
-
+
143255049 = 376821669
BaseRepresentation
bin10001000100111…
…10011000001001
3100222120002222120
420202132120021
5243133130144
622114241453
73356435130
oct1042363011
9328502876
10143255049
1173955703
123bb86289
13238a9b02
1415050917
15c89ae19
hex889e609

143255049 has 8 divisors (see below), whose sum is σ = 218293440. Its totient is φ = 81860016.

The previous prime is 143255033. The next prime is 143255087. The reversal of 143255049 is 940552341.

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

It is not a de Polignac number, because 143255049 - 24 = 143255033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143255089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3410814 + ... + 3410855.

It is an arithmetic number, because the mean of its divisors is an integer number (27286680).

Almost surely, 2143255049 is an apocalyptic number.

It is an amenable number.

143255049 is a deficient number, since it is larger than the sum of its proper divisors (75038391).

143255049 is an equidigital number, since it uses as much as digits as its factorization.

143255049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6821679.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 143255049 is about 11968.9201267282. The cubic root of 143255049 is about 523.2428620524.

The spelling of 143255049 in words is "one hundred forty-three million, two hundred fifty-five thousand, forty-nine".

Divisors: 1 3 7 21 6821669 20465007 47751683 143255049