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143424199 = 646922171
BaseRepresentation
bin10001000110001…
…11101011000111
3100222212201000101
420203013223013
5243204033244
622122024531
73361041232
oct1043075307
9328781011
10143424199
1173a607a6
1240048147
1323938ab9
1415096419
15c8d10d4
hex88c7ac7

143424199 has 4 divisors (see below), whose sum is σ = 143452840. Its totient is φ = 143395560.

The previous prime is 143424187. The next prime is 143424241. The reversal of 143424199 is 991424341.

143424199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991424341 = 2394148219.

It is a cyclic number.

It is not a de Polignac number, because 143424199 - 215 = 143391431 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 (143421199) 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, 4617 + ... + 17554.

It is an arithmetic number, because the mean of its divisors is an integer number (35863210).

Almost surely, 2143424199 is an apocalyptic number.

143424199 is a deficient number, since it is larger than the sum of its proper divisors (28641).

143424199 is an equidigital number, since it uses as much as digits as its factorization.

143424199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28640.

The product of its digits is 31104, while the sum is 37.

The square root of 143424199 is about 11975.9842601767. The cubic root of 143424199 is about 523.4487226684.

The spelling of 143424199 in words is "one hundred forty-three million, four hundred twenty-four thousand, one hundred ninety-nine".

Divisors: 1 6469 22171 143424199