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143424012 = 22311952001
BaseRepresentation
bin10001000110001…
…11101000001100
3100222212200202110
420203013220030
5243204032022
622122024020
73361040544
oct1043075014
9328780673
10143424012
1173a60646
1240048010
13239389a4
1415096324
15c8d100c
hex88c7a0c

143424012 has 12 divisors (see below), whose sum is σ = 334656056. Its totient is φ = 47808000.

The previous prime is 143423957. The next prime is 143424013. The reversal of 143424012 is 210424341.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1434240122 = 41140894436352288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143424012.

It is not an unprimeable number, because it can be changed into a prime (143424013) 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 3 ways as a sum of consecutive naturals, for example, 5975989 + ... + 5976012.

Almost surely, 2143424012 is an apocalyptic number.

143424012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143424012 is an abundant number, since it is smaller than the sum of its proper divisors (191232044).

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

143424012 is a wasteful number, since it uses less digits than its factorization.

143424012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11952008 (or 11952006 counting only the distinct ones).

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

The square root of 143424012 is about 11975.9764528827. The cubic root of 143424012 is about 523.4484951732.

Adding to 143424012 its reverse (210424341), we get a palindrome (353848353).

The spelling of 143424012 in words is "one hundred forty-three million, four hundred twenty-four thousand, twelve".

Divisors: 1 2 3 4 6 12 11952001 23904002 35856003 47808004 71712006 143424012