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143031000000 = 2635673139
BaseRepresentation
bin1000010100110101001…
…1111101101111000000
3111200012002001122002110
42011031103331233000
54320411414000000
6145412454415320
713222304304000
oct2051523755700
9450162048073
10143031000000
11557282a8319
1223878961540
131064580b715
146ccbdc4000
153ac1d8a850
hex214d4fdbc0

143031000000 has 784 divisors, whose sum is σ = 555617888000. Its totient is φ = 32457600000.

The previous prime is 143030999987. The next prime is 143031000001. The reversal of 143031000000 is 130341.

143031000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (784).

It is a super-2 number, since 2×1430310000002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 143031000000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143031000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1028999931 + ... + 1029000069.

Almost surely, 2143031000000 is an apocalyptic number.

143031000000 is a gapful number since it is divisible by the number (10) 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 143031000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277808944000).

143031000000 is an abundant number, since it is smaller than the sum of its proper divisors (412586888000).

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

143031000000 is an frugal number, since it uses more digits than its factorization.

143031000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 143031000000 its reverse (130341), we get a palindrome (143031130341).

The spelling of 143031000000 in words is "one hundred forty-three billion, thirty-one million", and thus it is an aban number.