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3216142542 = 23536023757
BaseRepresentation
bin1011111110110010…
…0111000011001110
322022010201222011110
42333230213003032
523041313030132
61251045032450
7142461521604
oct27754470316
98263658143
103216142542
111400479548
127590b5726
133c3401232
142271cb874
1513c53b1cc
hexbfb270ce

3216142542 has 8 divisors (see below), whose sum is σ = 6432285096. Its totient is φ = 1072047512.

The previous prime is 3216142519. The next prime is 3216142547. The reversal of 3216142542 is 2452416123.

It is a sphenic number, since it is the product of 3 distinct primes.

3216142542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216142547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268011873 + ... + 268011884.

It is an arithmetic number, because the mean of its divisors is an integer number (804035637).

Almost surely, 23216142542 is an apocalyptic number.

3216142542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3216142542 is a wasteful number, since it uses less digits than its factorization.

3216142542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536023762.

The product of its digits is 11520, while the sum is 30.

The square root of 3216142542 is about 56711.0442682905. The cubic root of 3216142542 is about 1476.0863458494.

Adding to 3216142542 its reverse (2452416123), we get a palindrome (5668558665).

The spelling of 3216142542 in words is "three billion, two hundred sixteen million, one hundred forty-two thousand, five hundred forty-two".

Divisors: 1 2 3 6 536023757 1072047514 1608071271 3216142542