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21310411214 = 2232915974821
BaseRepresentation
bin10011110110001100…
…110001000111001110
32001000011022001111102
4103312030301013032
5322120431124324
613442340023102
71353043335521
oct236614610716
961004261442
1021310411214
1190461983a4
124168991a92
1320180196a1
141062356bb8
1584ad15dae
hex4f63311ce

21310411214 has 16 divisors (see below), whose sum is σ = 34505615520. Its totient is φ = 9840489120.

The previous prime is 21310411163. The next prime is 21310411219. The reversal of 21310411214 is 41211401312.

It is a super-3 number, since 3×213104112143 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310411219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7986077 + ... + 7988744.

It is an arithmetic number, because the mean of its divisors is an integer number (2156600970).

Almost surely, 221310411214 is an apocalyptic number.

21310411214 is a deficient number, since it is larger than the sum of its proper divisors (13195204306).

21310411214 is a wasteful number, since it uses less digits than its factorization.

21310411214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15974875.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21310411214 its reverse (41211401312), we get a palindrome (62521812526).

The spelling of 21310411214 in words is "twenty-one billion, three hundred ten million, four hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 23 29 46 58 667 1334 15974821 31949642 367420883 463269809 734841766 926539618 10655205607 21310411214