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21241310132 = 2271011175029
BaseRepresentation
bin10011110010000101…
…001010101110110100
32000211100021100122002
4103302011022232310
5322000233411012
613431430554432
71351244104610
oct236205125664
960740240562
1021241310132
119010190769
124149808a18
132006904083
1410570ca340
15844c167c2
hex4f214abb4

21241310132 has 24 divisors (see below), whose sum is σ = 42487388160. Its totient is φ = 9102396960.

The previous prime is 21241310089. The next prime is 21241310137. The reversal of 21241310132 is 23101314212.

It is a super-2 number, since 2×212413101322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241310137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245594 + ... + 320622.

It is an arithmetic number, because the mean of its divisors is an integer number (1770307840).

Almost surely, 221241310132 is an apocalyptic number.

It is an amenable number.

21241310132 is an abundant number, since it is smaller than the sum of its proper divisors (21246078028).

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

21241310132 is a wasteful number, since it uses less digits than its factorization.

21241310132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85151 (or 85149 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21241310132 its reverse (23101314212), we get a palindrome (44342624344).

The spelling of 21241310132 in words is "twenty-one billion, two hundred forty-one million, three hundred ten thousand, one hundred thirty-two".

Divisors: 1 2 4 7 14 28 10111 20222 40444 70777 75029 141554 150058 283108 300116 525203 1050406 2100812 758618219 1517236438 3034472876 5310327533 10620655066 21241310132