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143412 = 223171937
BaseRepresentation
bin100011000000110100
321021201120
4203000310
514042122
63023540
71135053
oct430064
9237646
10143412
1198825
126abb0
1350379
143a39a
152c75c
hex23034

143412 has 48 divisors (see below), whose sum is σ = 383040. Its totient is φ = 41472.

The previous prime is 143401. The next prime is 143413. The reversal of 143412 is 214341.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 143391 and 143400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143413) by changing a digit.

143412 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 15 ways as a sum of consecutive naturals, for example, 3858 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (7980).

2143412 is an apocalyptic number.

143412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191520).

143412 is an abundant number, since it is smaller than the sum of its proper divisors (239628).

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

143412 is a wasteful number, since it uses less digits than its factorization.

143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 78 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 143412 is about 378.6977686758. The cubic root of 143412 is about 52.3433881537.

Adding to 143412 its reverse (214341), we get a palindrome (357753).

It can be divided in two parts, 14341 and 2, that multiplied together give a palindrome (28682).

The spelling of 143412 in words is "one hundred forty-three thousand, four hundred twelve", and thus it is an iban number.

Divisors: 1 2 3 4 6 12 17 19 34 37 38 51 57 68 74 76 102 111 114 148 204 222 228 323 444 629 646 703 969 1258 1292 1406 1887 1938 2109 2516 2812 3774 3876 4218 7548 8436 11951 23902 35853 47804 71706 143412