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142023012 = 22311835251
BaseRepresentation
bin10000111011100…
…01100101100100
3100220020111221120
420131301211210
5242324214022
622032013540
73343114155
oct1035614544
9326214846
10142023012
1173193a9a
123b6912b0
13235680b1
1414c0d92c
15c705d5c
hex8771964

142023012 has 12 divisors (see below), whose sum is σ = 331387056. Its totient is φ = 47341000.

The previous prime is 142023001. The next prime is 142023017. The reversal of 142023012 is 210320241.

142023012 is digitally balanced in base 3, 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 142022982 and 142023000.

It is not an unprimeable number, because it can be changed into a prime (142023017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5917614 + ... + 5917637.

It is an arithmetic number, because the mean of its divisors is an integer number (27615588).

Almost surely, 2142023012 is an apocalyptic number.

142023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142023012 is an abundant number, since it is smaller than the sum of its proper divisors (189364044).

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

142023012 is a wasteful number, since it uses less digits than its factorization.

142023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11835258 (or 11835256 counting only the distinct ones).

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

The square root of 142023012 is about 11917.3408107681. The cubic root of 142023012 is about 521.7385252614.

Adding to 142023012 its reverse (210320241), we get a palindrome (352343253).

The spelling of 142023012 in words is "one hundred forty-two million, twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 12 11835251 23670502 35505753 47341004 71011506 142023012