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142632213 = 3616711633
BaseRepresentation
bin10001000000001…
…10010100010101
3100221101110121120
420200012110111
5243003212323
622053034153
73351232233
oct1040062425
9327343546
10142632213
117356a769
123b925959
132371c479
1414d2b953
15c7c65e3
hex8806515

142632213 has 16 divisors (see below), whose sum is σ = 196195776. Its totient is φ = 92125440.

The previous prime is 142632197. The next prime is 142632233. The reversal of 142632213 is 312236241.

It is not a de Polignac number, because 142632213 - 24 = 142632197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142632233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6445 + ... + 18077.

It is an arithmetic number, because the mean of its divisors is an integer number (12262236).

Almost surely, 2142632213 is an apocalyptic number.

It is an amenable number.

142632213 is a deficient number, since it is larger than the sum of its proper divisors (53563563).

142632213 is a wasteful number, since it uses less digits than its factorization.

142632213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11764.

The product of its digits is 1728, while the sum is 24.

The square root of 142632213 is about 11942.8728955809. The cubic root of 142632213 is about 522.4834520831.

Adding to 142632213 its reverse (312236241), we get a palindrome (454868454).

It can be divided in two parts, 142632 and 213, that added together give a triangular number (142845 = T534).

The spelling of 142632213 in words is "one hundred forty-two million, six hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 3 61 67 183 201 4087 11633 12261 34899 709613 779411 2128839 2338233 47544071 142632213