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142223330 = 25611072179
BaseRepresentation
bin10000111101000…
…10011111100010
3100220121200201202
420132202133202
5242402121310
622040201202
73344610164
oct1036423742
9326550652
10142223330
1173310547
123b769202
1323608322
1414c62934
15c7453a5
hex87a27e2

142223330 has 32 divisors (see below), whose sum is σ = 262751040. Its totient is φ = 55408320.

The previous prime is 142223311. The next prime is 142223339. The reversal of 142223330 is 33322241.

142223330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142223339) 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, 64181 + ... + 66359.

It is an arithmetic number, because the mean of its divisors is an integer number (8210970).

Almost surely, 2142223330 is an apocalyptic number.

142223330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142223330 is a deficient number, since it is larger than the sum of its proper divisors (120527710).

142223330 is a wasteful number, since it uses less digits than its factorization.

142223330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 142223330 is about 11925.7423249037. The cubic root of 142223330 is about 521.9837074034.

Adding to 142223330 its reverse (33322241), we get a palindrome (175545571).

The spelling of 142223330 in words is "one hundred forty-two million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 61 107 122 214 305 535 610 1070 2179 4358 6527 10895 13054 21790 32635 65270 132919 233153 265838 466306 664595 1165765 1329190 2331530 14222333 28444666 71111665 142223330