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143650093 = 193744301
BaseRepresentation
bin10001000111111…
…10110100101101
3101000022011212211
420203332310231
5243233300333
622130530421
73363001636
oct1043766455
9330264784
10143650093
11740a5494
1240136a11
13239b7872
141511488d
15c927ecd
hex88fed2d

143650093 has 4 divisors (see below), whose sum is σ = 144394588. Its totient is φ = 142905600.

The previous prime is 143650069. The next prime is 143650109. The reversal of 143650093 is 390056341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 390056341 = 1805921599.

It can be written as a sum of positive squares in 2 ways, for example, as 79602084 + 64048009 = 8922^2 + 8003^2 .

It is a cyclic number.

It is not a de Polignac number, because 143650093 - 29 = 143649581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143650033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371958 + ... + 372343.

It is an arithmetic number, because the mean of its divisors is an integer number (36098647).

Almost surely, 2143650093 is an apocalyptic number.

It is an amenable number.

143650093 is a deficient number, since it is larger than the sum of its proper divisors (744495).

143650093 is an equidigital number, since it uses as much as digits as its factorization.

143650093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744494.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 143650093 is about 11985.4116741979. The cubic root of 143650093 is about 523.7233901758.

It can be divided in two parts, 1436 and 50093, that added together give a square (51529 = 2272).

The spelling of 143650093 in words is "one hundred forty-three million, six hundred fifty thousand, ninety-three".

Divisors: 1 193 744301 143650093