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143100012 = 223111975503
BaseRepresentation
bin10001000011110…
…00100001101100
3100222021020022110
420201320201230
5243113200022
622111044020
73355221126
oct1041704154
9328236273
10143100012
117385a180
123bb10610
1323854383
1415010216
15c86a00c
hex887886c

143100012 has 48 divisors (see below), whose sum is σ = 366170112. Its totient is φ = 43135680.

The previous prime is 143100011. The next prime is 143100049. The reversal of 143100012 is 210001341.

It is a happy number.

It is a super-2 number, since 2×1431000122 = 40955226868800288, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (143100011) 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, 23253 + ... + 28755.

It is an arithmetic number, because the mean of its divisors is an integer number (7628544).

Almost surely, 2143100012 is an apocalyptic number.

143100012 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 143100012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183085056).

143100012 is an abundant number, since it is smaller than the sum of its proper divisors (223070100).

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

143100012 is a wasteful number, since it uses less digits than its factorization.

143100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 143100012 is about 11962.4417239960. The cubic root of 143100012 is about 523.0540350002.

Adding to 143100012 its reverse (210001341), we get a palindrome (353101353).

The spelling of 143100012 in words is "one hundred forty-three million, one hundred thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 197 394 591 788 1182 2167 2364 4334 5503 6501 8668 11006 13002 16509 22012 26004 33018 60533 66036 121066 181599 242132 363198 726396 1084091 2168182 3252273 4336364 6504546 11925001 13009092 23850002 35775003 47700004 71550006 143100012