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21124133214 = 233520688869
BaseRepresentation
bin10011101011000110…
…001011000101011110
32000112011210011010020
4103223012023011132
5321230234230324
613412043253010
71345322112132
oct235306130536
960464704106
1021124133214
118a60027a38
12411651a166
131cb8558112
1410457073c2
158397bc679
hex4eb18b15e

21124133214 has 8 divisors (see below), whose sum is σ = 42248266440. Its totient is φ = 7041377736.

The previous prime is 21124133209. The next prime is 21124133231. The reversal of 21124133214 is 41233142112.

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

21124133214 is an admirable number.

It is a Curzon number.

It is a congruent number.

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, 1760344429 + ... + 1760344440.

It is an arithmetic number, because the mean of its divisors is an integer number (5281033305).

Almost surely, 221124133214 is an apocalyptic number.

21124133214 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.

21124133214 is a wasteful number, since it uses less digits than its factorization.

21124133214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520688874.

The product of its digits is 1152, while the sum is 24.

Adding to 21124133214 its reverse (41233142112), we get a palindrome (62357275326).

The spelling of 21124133214 in words is "twenty-one billion, one hundred twenty-four million, one hundred thirty-three thousand, two hundred fourteen".

Divisors: 1 2 3 6 3520688869 7041377738 10562066607 21124133214