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142230412 = 2243826921
BaseRepresentation
bin10000111101001…
…00001110001100
3100220122001110001
420132210032030
5242402333122
622040254044
73344636632
oct1036441614
9326561401
10142230412
11733158a5
123b771324
132360b60c
1414c65352
15c747527
hex87a438c

142230412 has 12 divisors (see below), whose sum is σ = 254691976. Its totient is φ = 69461280.

The previous prime is 142230401. The next prime is 142230427. The reversal of 142230412 is 214032241.

It is a self number, because there is not a number n which added to its sum of digits gives 142230412.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413289 + ... + 413632.

Almost surely, 2142230412 is an apocalyptic number.

It is an amenable number.

142230412 is a deficient number, since it is larger than the sum of its proper divisors (112461564).

142230412 is a wasteful number, since it uses less digits than its factorization.

142230412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826968 (or 826966 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142230412 is about 11926.0392419277. The cubic root of 142230412 is about 521.9923713060.

Adding to 142230412 its reverse (214032241), we get a palindrome (356262653).

The spelling of 142230412 in words is "one hundred forty-two million, two hundred thirty thousand, four hundred twelve".

Divisors: 1 2 4 43 86 172 826921 1653842 3307684 35557603 71115206 142230412