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143212044 = 223195231201
BaseRepresentation
bin10001000100100…
…11111000001100
3100222110220222210
420202103320030
5243130241134
622113310420
73356165553
oct1042237014
9328426883
10143212044
1173926368
123bb65410
1323893371
141503cd9a
15c88d2e9
hex8893e0c

143212044 has 48 divisors (see below), whose sum is σ = 352714880. Its totient is φ = 45100800.

The previous prime is 143212037. The next prime is 143212049. The reversal of 143212044 is 440212341.

It is a self number, because there is not a number n which added to its sum of digits gives 143212044.

It is not an unprimeable number, because it can be changed into a prime (143212049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118644 + ... + 119844.

Almost surely, 2143212044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143212044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176357440).

143212044 is an abundant number, since it is smaller than the sum of its proper divisors (209502836).

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

143212044 is a wasteful number, since it uses less digits than its factorization.

143212044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 143212044 is about 11967.1234638906. The cubic root of 143212044 is about 523.1904978448.

Adding to 143212044 its reverse (440212341), we get a palindrome (583424385).

The spelling of 143212044 in words is "one hundred forty-three million, two hundred twelve thousand, forty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 523 1046 1201 1569 2092 2402 3138 3603 4804 6276 7206 9937 14412 19874 22819 29811 39748 45638 59622 68457 91276 119244 136914 273828 628123 1256246 1884369 2512492 3768738 7537476 11934337 23868674 35803011 47737348 71606022 143212044