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143401223 = 746743867
BaseRepresentation
bin10001000110000…
…10000100000111
3100222211112111102
420203002010013
5243202314343
622121330315
73360614240
oct1043020407
9328745442
10143401223
1173a45509
124003699b
132392b4c4
141508bcc7
15c8c93b8
hex88c2107

143401223 has 8 divisors (see below), whose sum is σ = 164241792. Its totient is φ = 122649336.

The previous prime is 143401207. The next prime is 143401241. The reversal of 143401223 is 322104341.

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 143401223 - 24 = 143401207 is a prime.

It is a super-3 number, since 3×1434012233 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143401195 and 143401204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143401243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18665 + ... + 25202.

It is an arithmetic number, because the mean of its divisors is an integer number (20530224).

Almost surely, 2143401223 is an apocalyptic number.

143401223 is a deficient number, since it is larger than the sum of its proper divisors (20840569).

143401223 is an equidigital number, since it uses as much as digits as its factorization.

143401223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44341.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143401223 is about 11975.0249686587. The cubic root of 143401223 is about 523.4207696912.

Adding to 143401223 its reverse (322104341), we get a palindrome (465505564).

The spelling of 143401223 in words is "one hundred forty-three million, four hundred one thousand, two hundred twenty-three".

Divisors: 1 7 467 3269 43867 307069 20485889 143401223