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143022 = 23112197
BaseRepresentation
bin100010111010101110
321021012010
4202322232
514034042
63022050
71133655
oct427256
9237163
10143022
1198500
126a926
1350139
143a19c
152c59c
hex22eae

143022 has 24 divisors (see below), whose sum is σ = 316008. Its totient is φ = 43120.

The previous prime is 142993. The next prime is 143053. The reversal of 143022 is 220341.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 142989 and 143007.

It is a congruent number.

It is an unprimeable number.

143022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 628 + ... + 824.

It is an arithmetic number, because the mean of its divisors is an integer number (13167).

2143022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158004).

143022 is an abundant number, since it is smaller than the sum of its proper divisors (172986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143022 is a wasteful number, since it uses less digits than its factorization.

143022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 143022 is about 378.1824956288. The cubic root of 143022 is about 52.2958968834.

Adding to 143022 its reverse (220341), we get a palindrome (363363).

The spelling of 143022 in words is "one hundred forty-three thousand, twenty-two", and thus it is an iban number.

Divisors: 1 2 3 6 11 22 33 66 121 197 242 363 394 591 726 1182 2167 4334 6501 13002 23837 47674 71511 143022